The Case Against Kale

I want to share with you a recent conversation between me and my “bookface” mom:

Mom: Suzy!  Eat more broccoli!!!  (This was the 5th time she said it).
Suzy: Ma, c’mon, I don’t want a goitrogen.
Mom: Hah? Why don’t you like going to the gym?
Suzy: No ma, I said goitrogen!  I like going to the gym!
Mom: Well then, after you eat that broccoli, you can go to the gym! EEEEAT!

You can just hear her hollering at me, can’t you?
She had no understanding of why I refused to eat a plateful of raw broccoli.
Why would she?
We’ve always been told that broccoli’s good for us, and up until that day, I had never refused it.

I fell in love with broccoli around the age of 19, and even today I’ll pay the extra buck to add it to my Green Curry, or Moo Goo Gai Pain, or whatever. It’s cooked, keep that in mind, becuase there’s one big concern with broccoli for people like me who have thyroid issues: it is a goitrogenic food in it’s raw form.  A goitrogen is a compound found in a food or beverage that could ultimately cause a goiter, which is a swelling in the neck due to an enlarged thyroid gland. It’s painful and unattractive, and it comes with a lot of very unpleasant symptoms. Broccoli’s siblings (meaning other related fruits and veggies) can do the same thing. Kale is a big one. Almost every one I know puts a leaf of raw kale in their smoothie. Kale is high in natural folate, so it’s everyone’s favorite food if they have a methylation SNP in their genes.

But too much raw kale will backfire because kale is a goitrogen. Juicing or drinking kale (or other goitrogenic foods) every day will give you that mighty folate (yay) but it could suppress iodine uptake to the point of illness (bummer). You’d never connect it to your “healthy” drink would you?!

Like dozens of otherwise-healthy foods, especially in their raw form- attacks thyroid function.

NOW, YOU CAN READ ON… and leave me your own comments at the end of this article.

Goitrogenic foods include cruciferous vegetables such as kale, broccoli, cabbage, Brussels sprouts.  Some fruits, nuts and seeds contain goitrogens as well, like peaches, strawberries, pears, peanuts, soy and flax. A complete list is at the end of this article. 

It’s not that goitrogenic foods are bad. I want to make the point that they are NOT BAD. I have promoted them for years, as superfoods. They are.  But in their raw form, and in large amounts, they can affect iodine levels. It’s a fact. THAT IS NOT MY OPINON. They contain healthy sulfur-based compounds, as well as lots of other nutrients.  I recommend you eat them, but cook them first okay?

That said, if you have (or are afraid of getting) thyroid disease, they are a BAD MATCH for you. Many of you have dealt with thyroid disease and now that you are well, you want to protect yourself and maintain good health. You know that healthy eating is an integral part of staying well, but what healthy eating means for you might not  be what you expect.

Goitrogenic compounds like “thiocyanate” can inhibit thyroid function by temporarily suppressing iodine absorption and utilization.  In addition to being necessary for healthy thyroid function, iodine is critical to good health.  In a study published in Clinical Nutrition Research 2014, researchers were able to confirm that blocking iodine caused a pro-inflammatory reaction against the thyroid gland (bad).  The researchers found this association in several geographic regions of the world where iodine intake was low and raw cruciferous vegetable intake was high. They concluded, “The consumption of goitrogenic food, such as cruciferous vegetables, showed a positive association with [thyroid cancer] risk.” When you consume large amounts of goitrogens, it can also put a lot of stress on your reproductive organs (prostate, breast).  If it helps you to remember (and confessedly I’m being a bit dramatic here) those crucifers… they gonna crucify you!

UPDATE [3-27-16]
I am seeing a lot of questions and confusion in the comment section below (my forum where you all can talk) and many are trying to figure out “What can I eat?”
I’m not telling you to stop eating anything.
So I want to say this right now so it’s very clear and I said it above too: You can absolutely EAT crucifer veggies if you want, they are superfoods, they should be STEAMED or COOKED and that will eliminate the goitrogenic substances. My article today is intended to warn you about these crucifers as RAW foods, or as a RAW powdered form like the sort you buy in certain green drink mixes at the health food store. Those are raw. Or when you juice raw kale or spinach, things like that. Those are the goitrogenic substances. It’s okay to eat them cooked, as much as you want.

In November 2015, in the International Journal of Cancer, researchers looked at dietary patterns in people and had them answer questions about food intake during their life. A diet was designed by the National Institutes of Health in Bethesda, Maryland and the participants were followed for an average ten years. Within that time frame, 325 participants (143 men and 182 women) were diagnosed with thyroid cancer. They didn’t track the number of people who developed a goiter, but I suspect this was happening too.  After evaluating all the different variables, one dietary trend in particular stood out: Higher intake of ‘cruciferous vegetables’ in mid-life doubled the risk of thyroid cancer. The researchers also noted that eating a lot of sweets like baked goodies (think cupcakes) during your teen years and mid-life could also increase thyroid cancer risk, but surprisingly, not as much as eating broccoli! I know, hard to believe. 

Many of you are consuming “greens” because I’ve recommended them over the years. As you might know, greens are powder GREEN blends that can be combined with water, juices or smoothies to add a healthy boost to your daily food intake.  Greens can help your hair and nails grow faster, improve gastrointestinal function, bind toxins like heavy metals and help you feel lighter and more energetic. Greens are fundamental to supporting healthy blood sugar levels and blood pressure, as well as cholesterol ratios. Green powdered drink blends are considered healthy.

However, many of the brands out there are loaded with goitrogens!

I mean L-O-A-D-E-D!
Drinking green powdered formulas that contain these RAW goitrogens every day could cause dramatic consequences to your thyroid and reproductive organs, despite all the other benefits from these superfoods. (Again, I am not referring to eating cooked kale or broccoli or brussels, etc. I AM REFERRING TO RAW GOITROGENS FOUND IN SOME GREEN SUPERFOOD BLENDS.

One of my friends who was consuming greens regularly told me her eyelashes fell out by month three and she was too tired to work full-time. I realized what was happening and told her to stop the greens immediately.  I also advised she adjust her diet to avoid common goitrogenic foods.  She started back on the road to health immediately, and her hair began to grow back in, but it took months for her to feel truly good again.

I am still an advocate for green superfood drinks, just not those containing goitrogens.

Avoiding goitrogens is crucial if: 

  • You have hypothyroidism (weight gain, hair loss, feeling cold, depressed, anxious)
  • You want to avoid getting hypothyroidism
  • You have a goiter
  • You want to avoid getting a goiter
  • You take medication for hypothyroidism (Synthroid, Levothyroxine, Armour, etc)
  • You have Hashimoto’s thyroiditis
  • You have iodine deficiency or suspect it
  • You have fibrocystic breast disease

If you aren’t able to avoid goitrogenic vegetables altogether, cooking them will help, as will supplementing your diet with iodine-rich foods such as sea vegetables or shellfish (or iodine supplements – mine is available here).

Here a list of common goitrogens.

The fruits and vegetables that appear in boldface below are very commonly found in other greens currently on the market.  I encourage you to READ THE LABEL of the product you consume and minimize or eliminate RAW goitrogens:

Bamboo shoots
Bok choy
Brussels sprouts
Canola oil
Chinese cabbage
Choy sum
Collard greens
Flax seed
Kai-lan (Chinese broccoli)
Mizuna (Japanese greens)
Mustard greens
Pine nuts
Soy milk
Soy (beans, milk, tofu, soy lecithin)
Sprouts, alfalfa or broccoli
Sweet potatoes
Swiss Chard

Feel free to leave me a comment below.



  1. Donna Tomlinson March 21, 2016 at 10:07 pm

    Hi Suzy,
    Thank you for this article and the shorter one in the newspaper that my sister called my attention to…
    I have a methylation problem and perhaps therefore have a hypothyroid problem…but I thought I was supposed to get more benefit folate-wise from the leafy green vegetables you list in your goitrogen article.
    How would you reconcile the two and what would you eat? : )
    Donna T.

    • Suzy Cohen April 1, 2016 at 2:45 am

      Try putting the search terms in my search box above. Put in “folate” and “methylation” and “thyroid” and “goitrogen.”
      I see no problem with taking a supplement for your folate, instead of raw kale.
      You can also cook the leafy greens to get your folate, and thus negate the goitrogenic effect.

  2. Paula Richards March 21, 2016 at 11:03 pm

    Does peanuts include peanut butter?, do you mean “raw” sweet potatoe only or does that include cooked as well? Also, I watched you on “700 Club” the other day, and you really made a lot of sense. I’ve been listening to all your videos on line – Love it!! I am getting ready to order ThyroScript, as I am 65 years old and am looking for HELP. I’ve had a lot of weight gain, hair loss, insomnia and heart palpitations, with no history of thyroid problems, up until menopause. I’ve been toughing it out and have been hesitant regarding seeing a physician, not wanting to be slapped on Synthroid. I’ve been off tap water for 2 yrs now and eat nothing but organics (hardly any dairy). I take probiotics and rarely intake sugar. Do you have any advice as to a reputable person here in Dallas, Texas hat studies nutrition – The demand is skyrocketing!! HELP!!!

    • Suzy Cohen April 1, 2016 at 4:47 pm

      Hi Paula,
      Yes it includes peanut butter.
      Sweet potatoes, sometimes people juice them or pumpkin (similar) or put into smoothies.
      If you cook it or limit it to once or twice per week that’s reasonable and ok.

  3. Audrey Silber March 22, 2016 at 3:21 am

    Hi, Suzy!

    I have Hashimoto’s thyroiditis; I’m gluten- and dairy-free. My eye doctor recommended that I take a flaxseed oil supplement, but I noticed that flaxseed is on your list of goitrogenic foods. Would a daily capsule of flaxseed oil not be recommended for me? Or is it processed enough not to be a problem?

    Thank you!

    • Suzy Cohen July 3, 2016 at 6:13 pm

      I would personally avoid, or avoid long-term anyway (more than 3 weeks) but you can do as you wish.

  4. Brenda S March 22, 2016 at 3:05 pm

    Suzy…thank you so much for this information! I did know about goitrogens, but not this extensively. This list is going to help me..there are so many things on this list that I eat on a regular basis. My thyroid improvement has been very slow…so, I am going to have to step it up.

  5. Joanne McGovern March 22, 2016 at 3:12 pm

    Chris Kresser has said that fermenting raw cabbage actually raises the amount of goitrogens in it. So I’m avoiding fermented cruciferous vegetables. Maybe consuming them in small amounts would be okay. You would get some good bacteria but not so many goitrogens. I have a slow thyroid.

  6. Josefina Martinez March 22, 2016 at 3:22 pm

    huaaao eating for years green juice,I have fibrocystic breast and I was giving o my husband with hypothyroidism and my bohe wtih large prostate.please advice.thank you so muchI high appreciate this information.
    Josefina Martinez

  7. Kathleen Kareem March 22, 2016 at 3:29 pm

    I love reading your articles however I’m not sure how to apply the information to my situation. I had a goiter and it was removed (my whole thyroid that is). So now I must take synthroid everyday and I feel awful every day, my muscles don’t feel like they work at all and so much of what you say sounds like me. I’m just not sure if taking the synthroid, the same information applies. Please Help.

    • Suzy Cohen April 1, 2016 at 4:45 pm

      Hi Kathleen
      It sounds like you need some adjustments to your thyroid and/or adrenal function. As soon as they take your thyroid out, you become clinically hypothyroid, and you need medication life-long. But is it enough in terms of dose? Is it converting peripherally? You should get a copy of my book which explains everything neatly and concisely for you, Thyroid Healthy.
      Make sure you read about the causes of goiters, and also the labs on page 52, and the entire book, it’s really useful.

  8. Susan March 22, 2016 at 3:39 pm

    So, as long as we cook these foods, we’ll be fine? Or is there still some danger, eating them cooked? I wasn’t aware of the strawberries, peaches, sweet potatoes and flax. Thanks for enlightening me.

  9. Caroline Richardson March 22, 2016 at 3:39 pm

    I live in rural Georgia. 98% of the foods on the list are grown and consumed here everyday. I eat foods on this list everyday. I have drastically reduced my consumption of carbohydrates. Now, I don’t know what to eat.

  10. Evelyn March 22, 2016 at 4:05 pm

    Hey Suzy! I love that you are so willing to speak the truth…even when it isn’t popular! I am more sad about strawberries! I have been on Thyroscript for a month now, and I am having signs of new hair growth and more energy! WOW! Anyway, I digress… Do I totally avoid what is on the list or just cook everything? You are such a breath of fresh air to someone who has 30 yrs in healthcare! Keep it comin! Evelyn

    • Suzy Cohen April 1, 2016 at 4:43 pm

      I would cook whatever you want to eat (that’s on the list).

  11. Dr Chris Kennett March 22, 2016 at 4:20 pm

    So just cook the veggies and all will be fine?
    This also.goes for veggies that contain oxalic acid.

  12. Glenn March 22, 2016 at 4:31 pm

    Thank you Suzy, I am taking your ThyroScript and stopped all raw crucifers and I’m starting to “warm up.” The above list is helpful because I realize that I am still eating some of those (always cooked now). Is it OK to eat these cooked on a daily basis? And could you develop a list of veggies that are not goitrogenic? Thanks for all you do.

    • Suzy Cohen April 1, 2016 at 2:55 am

      Yes, cook them, eat them daily (if cooked).

  13. AR March 22, 2016 at 4:34 pm

    Well…one wonders what the heck are we supposed to eat these days after you’ve gone gluten free, soy free, vegan, sugar free, and now Goitrogenic free!! And sweet potatoes?!!? UGH!

  14. Maria March 22, 2016 at 4:41 pm

    What if we add iodine as supplement to our daily diet and have those vegetables in moderation ? Would it cancel out the the goitergenic effect of those vegetables?

  15. LAURA ALLEN March 22, 2016 at 4:53 pm

    suzy, been waiting for the release of thyroid greens and just found them on your shop site, your free gifts expired in FEB.2016 for buying. Cannot find the label anywhere. I don’t know why all of a sudden I haven’t received your articles or the announcement that you had the greens on the market. Have you disappeared or my computer suddenly doesn’t get your emails that I dearly love cause of the great info that helps my life and others, the last email received was that the next Tuesday you were announcing the release of your Thyroid Greens but haven’t heard a thing since then, I looked up on your site today. I know Thyro Script works and hoping this helps too. Fighting thyroid issues as well as Lymphoma so you see why you are part of my lifeline. Not griping, just hoping you can look into this issue. Really do love you and your wonderful products. Laura

  16. Deborah March 22, 2016 at 5:34 pm

    Since you are on the subject of “green” stuff….what about SPIRULINA?
    I have heard information that goes both ways and therefore it is confusing to know what to do.
    I do have a thyroid condition, and it may be autoimmune, but we “aren’t sure”.
    I have been using spirulina in a smoothie daily and would like to know what you have to say about it. thanks!

    • Suzy Cohen April 1, 2016 at 2:55 am

      Spirulina is not a goitrogen and nothing I’ve said here applies to that particular green… it’s actually a blue-green algae, not a grass.
      As to autoimmune concerns, on occasion, the spirulina will exacerbate that, but not always. It has to do with Th1 vs. Th2 dominance. Too much too explain here. But whether or not you react badly to an herb or supplement (like spirulina and many others) has to do with whether or not you are Th1 or Th2 dominant. I explained the Th1 vs. Th2 very well in my ECZEMA book actually.

  17. Joan Seyler March 22, 2016 at 5:38 pm

    Was about to order your Greens but then saw it has sugar, granted organic cane sugar – BUT sugar is sugar. I’ve been drinking Green Magna made from raw organic barley grass for too many years to count. Not on your goitrogens list so assume it’s not one of the bad guys. No sugar and perfectly palatable, at least for me.
    Incidentally, am now back on 50mcg of Levothyroxine and got my TSHL down from 7.2 to 1.619. My endocrinologist thinks it was his doing but have been taking ThyroScript (unbeknownst to him) and think that was the key.
    Also, I want to start growing microgreens but assume broccoli, kale, daikon, muzumi etc. should be avoided. .
    Would love to get some response to my concerns, perhaps in your next email if my questions have enough widespread interest.
    Thanks for all your great work – even if some of the news isn’t all that happy-making.

  18. Marilyn March 22, 2016 at 6:05 pm

    Please give us a list of foods we can eat.

  19. marie Garrabrants March 22, 2016 at 6:09 pm

    Thank you for your time and effort to study these things and then share them with us…Just to make sure I understand correctly….if I cook those super foods, they will not harm me?

  20. Laura Gilliland March 22, 2016 at 6:33 pm

    Thank you Suzy! This is so helpful because I (a 44 yr. old woman) have Hashimoto’s and fibrocystic breasts and have been eating raw spinach, broccoli and strawberries regularly. I am going to print this list out and put it up on the fridge!
    P.S. I discovered you on the internet in 2014 when my thryoid meds stopped working…your info, summit, etc. turned my life around and I have since lost 25 pounds. I adore you so much! Keep the great info coming!
    P.S.S. my husband got sick and I watched your video on curing the flu- bought that Flunada stuff and some other of your suggestions and we knocked his flu out in two days! You’re the best!
    Much love-
    Laura from North Carolina 🙂

  21. Ann March 22, 2016 at 7:17 pm

    What can we eat? I have been eating all of these.
    I don’t gave a thyroid. Does this apply ?

  22. Debra March 22, 2016 at 7:27 pm


    What about for us who’s thyroid has been irradiated?

  23. gunnel March 22, 2016 at 7:27 pm

    Is it bitter if it’s cooked

  24. Colleen March 22, 2016 at 7:38 pm

    Hi, Suzy. I have Hashimoto’s thyroiditis and consume collard greens in a soup every day. So are you saying as long as they are cooked, there is no need to worry? BTW, I love all the information you provide. I’ve been a subscriber several for years and I love your 24-Hour Pharmacist book. 🙂

    • Suzy Cohen April 1, 2016 at 2:52 am

      Thank you Colleen. I agree, no worries, enjoy 🙂

  25. Karan March 22, 2016 at 7:48 pm

    Could you have the green veggies daily if steamed or dehydrated?

  26. Deb Walker March 22, 2016 at 8:00 pm

    What are we supposed to eat then:((((

  27. Doni Mae March 22, 2016 at 8:06 pm

    Can you explain exactly what goitrogens do? It seems an enlarged thyroid can be cause by several different tissue changes so may be there are several different kinds of goitrogens.
    I am concerned because I am mildly hypothyroid: it seems to be due to inadequate secretion of TSH but I suspect I have had other problems. Since my TSH was in the low normal range my hypothyroid symptoms were never explained. I do like a lot of foods on your list of goitrogens but don’t want to make my thyroid problems worse.



  28. Beth Moulton March 22, 2016 at 8:07 pm

    Does this also apply to people who do not have a thyroid (due thyroid cancer treatment) and take Nature Thyroid?

  29. Hélène March 22, 2016 at 8:08 pm

    So to able to still get the sulfur compounds in the cruciferous veggies, cook them and eat seaweeds. Sounds easy to me. Im still doing raw peaches, pears and strawberries in season tho lol

  30. Mary Jo Travillian March 22, 2016 at 8:09 pm

    Are all of these foods listed ok to eat cooked only?

    • Suzy Cohen April 1, 2016 at 2:41 am

      Yes, the crucifers are superfoods. When raw they are goitrogenic, but cooked they are wonderful.

  31. pm March 22, 2016 at 8:12 pm

    Are flax seeds okay when baked? I make my own flax seed bread.


  32. Linda March 22, 2016 at 8:16 pm

    Suzy, good article – waiting to see yours. A question – what about taking MSM daily? DIM?
    Thanks for all your info and great advise.

  33. Gayle March 22, 2016 at 8:20 pm

    Thank you for this list Suzy!!!! I have been learning (the hard way) that I am EXTREMELY sensitive at least – if not down right allergic to the food items on this list. I have a histamine response to MANY of the foods listed here. What I was not aware of is how many of these food items are found as “proprietary Ingredients” in SOOOO many supplements!!! Both vit. and mineral “complex” nutritionals, as well as pre-biotic foods in probiotic capsules!!!!!!!!!! I have to be so VERY careful to read ALL the ingredients! Even the very fine print ones!!!

    People think I’m simply being OCD to get special attention. Not my style. THANK YOU for declaring this to the world. I’m going to be passing this info on to all those who shake their heads at me as if I’ve lost my mind and have chosen to avoid me. Their loss. I’ll be moving on . . . .

    Didn’t know about pears — just don’t eat them for the high sugar content. Not good for sick adrenals. What a mess anxious stress (imposed on you by others) can do to one’s physical health. How sad that we all tolerate this abuse and then spend years trying to overcome the fall out against are physical bodies.

  34. Mary March 22, 2016 at 8:21 pm

    I am glad I read your article. I have been eating sliced radishes at lunch about 3-4 times a week. I did notice that if I ate too many slices, my stomach did not like it.

    Now, I will probably avoid them.

    I knew about some of those on your list and others are news.

    Thanks, Suzy.

  35. Cheryl Weaver March 22, 2016 at 8:27 pm

    If you are on thyroid meds are they okay to eat? Does cooking them help?
    Thank you,

  36. Deanna March 22, 2016 at 8:27 pm

    Thank you for sharing this information Suzy! With the greens/smoothie craze it’s important to be aware of. So many people have no idea it could be causing problems. Quite a few of the foods on the list are high oxalate as well, so if you’re like me, and have both thyroid and kidney stone issues, it is a very bad combination!

  37. Mary Lou Walsh March 22, 2016 at 8:27 pm

    Can you eat any of these items occasionally?

  38. Lisa McDonald March 22, 2016 at 8:39 pm

    Very interesting article. I knew about the cruciferous veggies, but was surprised when I read alfalfa spinach,strawberries . I have always cooked my cruciferous veggies for that reason.Note I will look into my greens prefer and see what they contain

  39. Robin Cason March 22, 2016 at 8:51 pm

    Is it the same with flax seed oil? I can not take fish oils because I am allergic to fish, so I try to get my omega oils from flax, olive, and coconut oils. Thank you for all your help and info you give us.

  40. Carolyn Phillips March 22, 2016 at 8:51 pm

    Oh my goodness! I knew about not eating broccoli and cauliflower raw, but didn’t realize that flaxseed, spinach, and strawberries were on the list. I have started drinking smoothies in the morning, which have raw spinach, flaxseed and berries in them. It has helped with another issue I was dealing with, but now I’m worried that my thyroid, that I’ve just gotten healthy, will be adversely affected. What should I do? Thank you so much for all your healthy information. I appreciate that you do not have an agenda other than health.

  41. Bobbee Alkema March 22, 2016 at 8:52 pm


  42. Gloria Cole March 22, 2016 at 8:59 pm

    Thank you for the list. I am hyperthyroid so this is what I SHOULD be eating.

  43. Simone March 22, 2016 at 9:06 pm

    Is a handful of cooked kale, a few florets of broccoli cooked and maybe a tablespoon of flaxseed a day OK to have if eating sea vegetables? Please could you also advise if irish seamoss is a good source of iodine and ok to have if there are thyroid issues?

  44. Peace March 22, 2016 at 9:06 pm

    Hi Suzy,
    Thanks a lot for enlighting me on the goitrogenic foods. When i found out that i was sensitive to gluten, i removed bread from my diet and all wheat related foods. I have also removed dairy products from my diet.
    I decided to have millet for breakfast for energy. I also make vegetable smoothie everyday for a snack or in the evening iwhen i am not so hungry- (spinach, basil, carrots, beetroot, coughettes, pumpkin, rocket, all sweet pepprs and corriander) and i add flax seeds, chia seeds and almonds. I also add spinach in my cooked food as a green to have a banced diet.
    Now, my question is;
    What should i eat to give me energy, because i thought i was eating healthy until i read your email. This is very complicated!!.
    Thanks a lot once again for the information and looking forward to your reply.

  45. Marinda Hillard March 22, 2016 at 9:18 pm

    I drink green almost every day which has Kale and all the other goitrogenics foods in it. Would taking iodine supplements solve the problem? I’m a breast cancer survivor of 12 years. Also I eat a lot of organic walnuts, almonds, etc. daily.

    • Suzy Cohen April 1, 2016 at 2:40 am

      I couldn’t possibly know if it’s enough for you or not. As a breast cancer survivor, iodine levels become IMPERATIVE for you. Absolutely crucial. Make sure you are measured by the lab (your doctor will do it, it’s a 24-hour urine test)

  46. H March 22, 2016 at 9:23 pm

    Does eating goitrogen foods pertain to people who have graves disease as well?
    Thank you.

  47. Alezz Laielen March 22, 2016 at 9:26 pm

    Hi Suzy,
    Thanks for this important information. I knew about not eating raw broccoli, kale, etc., but didn’t know about all the other foods. I switched to arugula for my salads some months ago and I have been experiencing hair loss and haven’t been able to determine why. At times I have Maca, but not that much. The thing about iodine is that I took seminars from Datis Kharrizian that wrote the book on Hashimoto’s. It was by attending his seminars I came to realize I probably had Hashimoto’s. He warned against taking iodine if someone had Hashimoto’s. It was through taking the tests that I found I not only gluten, soy, dairy and egg whites were trigger an autoimmune attack, but that I also had the genes for non-symptomatic sensitivity to gluten. I’d gone off wheat in the past but never could feel a difference! So I will be cooking all those foods and switching to the mixed lettuce for my salads. What about fermented cabbage?

  48. Joy Wilson March 22, 2016 at 9:28 pm

    So what do we do and how do we do the “what”? Did I miss that part? Everyone seems to advocate “Raw Foods” or Raw processed supplements, and of course they have most of the foods you list above? Does cooking remove the issue? How much cooking? I don’t like mushy veggies and I LOVE raw arugula, spinach, cabbage salad with strawberries and blueberries. And raw sprouted flaxseed (along with other raw sprouted seeds) goes into my protein drink or mixed in my avocado.

  49. Joy Wilson March 22, 2016 at 9:31 pm

    So what do we do and how do we do the “what”? Did I miss that part? Everyone seems to advocate “Raw Foods” or Raw processed supplements, and of course they have most of the foods you list above? Does cooking remove the issue? How much cooking? I don’t like mushy veggies and I LOVE raw arugula, spinach, cabbage salad with strawberries and blueberries. And raw sprouted flaxseed (along with other raw sprouted seeds) goes into my protein drink or mixed in my avocado.
    Oops – one more question – how does hydroxypropyl methylcellulose enhance any supplement considering the way it is processed?
    thank you!

  50. Kerry March 22, 2016 at 9:47 pm

    You are awesome as usual!! Thanks for sharing all your wisedom with everyone Suzy!!! Those who you mentioned that may be negative can join a bookface club. Lol

  51. Elaine March 22, 2016 at 9:54 pm

    What about flax oil? Does it have the same problems that the others do?

  52. Cheryl Valenti March 22, 2016 at 9:57 pm

    Dear Suzy, I am more confused because in listening to you in a summit ( maybe the Autoimmune Summit), you said YES to goitrigens broccoli and brussel sprouts, kale — because you would have to eat bucketfuls to interfere with thyroid ….. Is this newer information???

    • Suzy Cohen April 1, 2016 at 2:39 am

      Yes, I did say that. COOK THEM.

  53. carie March 22, 2016 at 9:58 pm

    Suzy, thanks for this article! I take 3/4 grain WP Thyroid daily because I am hypothyroid, & I eat 1 pound of cooked, boiled frozen spinach in my daily breakfast smoothie, 1/2 pound roasted frozen broccoli & 1/2 pound of roasted frozen cauliflower- both baked at 350 degrees for 30 min, everyday for dinner. Does the boiling & baking of these goitrogens make them acceptable, or should they be avoided totally? I am surprised that my daily staples are on this list! Would you please help us by listing better veggie choices? I know I should know better, but all I can think of is green beans, carrots, squash, & zucchini. Thanks.

  54. Evelyn March 22, 2016 at 10:11 pm

    This is really something to take in! It is like an overload! I am going to have to print this article and take the list with me when I shop for food. I eat lots of these foods regularly and now I need to compile a list of “safe” foods. I have hypothyroidism and take medications for it.

    • Suzy Cohen April 1, 2016 at 2:37 am

      You can eat them, just cook them. Take the list in if you’re trying to buy fruits/veggies for a juicer/smoothie or green food supplement.

  55. Janice March 22, 2016 at 10:18 pm

    I eat the bolded foods both raw and steamed. I also take 12.5 mg of iodine. I also have Hashimoto’s Thyroiditis. If I supplement with the iodine I should be ok right?

  56. Hanne Proudfoot March 22, 2016 at 10:22 pm

    Thank you for this! Very helpful. Would flax oil also be a goitrogen as it is coldpressed and eaten without heating it?

  57. Lana Sinagra March 22, 2016 at 10:24 pm

    I am completely shocked, that’s mostly what I eat on a daily basis, all are my favorites, especially arrugala!!! I was just diagnosed on 3/15/16, with a goiter and hypothyroidism. The goiter is pretty big, measuring 4.9×1.9×2.9 cm. I really would like to know what to do and what natural supplements I should take to get healed. I am still waiting for all the blood work to come back, this way I can have more info. I do know however that it is a benign goiter. Suzy please help!!!

    • Suzy Cohen April 1, 2016 at 2:36 am

      I did help you 😉
      Cook your favorites, you might want to re-read this article, it has a lot of clinical pearls that will help you “get healed.”

  58. Jody March 22, 2016 at 10:31 pm

    Wow – your article is an eye opener for me. I had my thyroid removed by radio active iodine in 1997 after being diagnosed with Graves. Recently I switched to a diet that I now realize is high in goitrogens. I have recently been unable to loose weight and now wonder if the flax, cauliflower, broccoli, and the rest of my diet high in goitrogens is part of the issue. I’m curious to see!

  59. Rich Brose March 22, 2016 at 10:37 pm

    Hi Suzy, there are many items on the goitrogenic food list that I consume on a regular basis. I don’t eat white flour, sugar, excess starchy foods, and I have had bouts with gout so that reduces my shellfish consumption. I am running out of options.
    Since I read your Diabetes Without Drugs, I lost weight and I have no signs of the disease. My two brothers and my sister are both afflicted as well as was my father. Dad died from diabetes, but he had both legs removed first. I am healthy, on the back side of my fifties and have problems with arthritis.
    I don’t necessarily want to live forever, but I do want to stay active with my kids. (Hiking, camping, fishing, etc) I mean, I can still do everything I did in my twenties; it just takes me longer to recover. I can live with that.
    So, if eating the things I usually do creates problems with the thyroid, I would like to see what this formula you are creating will do for me. I enjoy reading your books and newsletter and have found them useful and informative.
    By the way, how does the new mixture taste?

    • Suzy Cohen April 6, 2016 at 8:43 pm

      Hi Rich,
      It’s okay to eat the foods, just cook them.
      I think it tastes fruity and sweet. Most people LOVE it. If you find it too sweet, add more water (or use half a scoop).
      Smoothies are good too.

  60. Pauline March 22, 2016 at 10:43 pm

    Hi Suzy;

    I seem to remember you saying something about Sauerkraut on your website, but for some reason I don’t see it.

    Would Sauerkraut be considered the same as cooked?

    I have Hash., and try to stay away from the goitrogens unless cooked, and take liquid iodine along with probiotics and other supplements. Also stay mostly away from glutens, although I do cheat occasionally, but hope my Ashwaganda helps with that.

    Another problem is that I lost 10 lbs. in 1 month (a year ago) when I changed my diet. Having been at the low end of weight for my small frame, I am now too skinny, and eat a mid morning snack of almond butter on gluten free crackers, then some mixed unsalted nuts. Then mid afternoon snack of a veg. protein shake with an apple, cinnamon and almonds.

    These are in addition to breakfast, lunch and dinner(largest meal of the day). Nothing seems to help gain even 1 lb. back. Breakfast is usually either eggs and potatoes + juice or cereal with fruit. Lunch is turkey sandwich with avocado, lettuce & tomato + sauerkraut or leftover chicken & veggies. Dinner consists of either salmon, chicken, or grass fed beef patty with fresh veggies.

    Any suggestions?



  61. Sue March 22, 2016 at 10:51 pm

    Hi Suzy:
    Thank you so much for such an informative article, it answered a lot for me. Can I substitute dandelion for the kale? What about herbs such as parsley and cilantro?

    I take the ThyroScript can I take the powder as well?

  62. Alice Passmore March 22, 2016 at 11:06 pm

    Wow! That’s a lot of foods. I am gluten sensitive, so I avoid anything with gluten. My thyroid tested ok, but I still suspect it is low. I have many of the symptoms. I like, and eat, many of the foods you list. They are basic whole foods. It is good to know cooking them helps. I don’t think I could eliminate many from my diet as it is already restricted. Would digestive enzymes help? I can work more iodine into my diet. Any tips for better absorption?

  63. Marla Rose March 22, 2016 at 11:13 pm

    I’m very confused on the iodine question with Hashimoto’s. Good to consume more iodine with Hashimoto’s or bad? I’ve always heard to limit iodine. I can’t find a multi-vitamin or supplement without it, so I just don’t take a multi…

    Also, so steaming broccoli or cauliflower or any of these goitrogenic foods is okay, but still limit them? How about baked sweet potatoes? (which happen to be one of my favorites)

  64. Cindy March 22, 2016 at 11:23 pm

    I would imagine it is particularly a problem with foods that are eaten daily or routinely. My understanding is these foods are okay as long as they are cooked. A couple of the foods I have been eating daily include ground flax seeds and fermented cabbage. I will go off the flax seeds and see if I have more energy and stop loosing hair. What about the fermented cabbage? Does fermenting negate the goitrogenic effect?

    • Suzy Cohen March 31, 2016 at 5:58 pm

      Yes, cook them.
      Fermentation does not negate.
      Hair is likely going to come back in a few months 😉

  65. hannalotte schwardt March 22, 2016 at 11:25 pm

    my husband already takes thyroid script, should he also take iodine? thanks for all the good info

    • Suzy Cohen March 31, 2016 at 5:57 pm

      He can if he wants because there’s hardly any in there. But only if he’s shown to be iodine deficient.

  66. Cindy March 22, 2016 at 11:25 pm

    Another question: Does taking an iodine supplement help to prevent the effects of eating these goitrogens?

    • Suzy Cohen March 31, 2016 at 5:57 pm

      Yes, but you’re shooting a dart in the dark. How much iodine do you need, that’s a question.

  67. H March 22, 2016 at 11:26 pm

    Does this pertain to someone who has graves disease?

    • Suzy Cohen March 31, 2016 at 5:56 pm

      No. People with Graves’ have high thyroid, goitrogens may be helpful to an extent.

  68. Christine Keene March 22, 2016 at 11:31 pm

    I’m going to give this a try. I have known about goitrogens and was told it was only harmful if you ate them raw in big amounts. Still I felt kind of reluctant to eat them raw even when I juice. I had put in some kale but not a lot. Now I am wondering if I have been sabotaging myself all along. I am glad you site a research study. I already started taking Thyro Script and feel that it certainly can’t hurt to cut out the raw veg and fruit that would harm my thyroid and order the thyroid greens, too. My son takes the Gluco Script that I ordered for him and he has improved in less than a month. Great stuff!!
    I will let you know how I do on the thyroid greens after I start taking them.

  69. Sharon Morrison March 22, 2016 at 11:32 pm

    I have an untreated goiter (I think) & a thyroid mass. What kind of Dr. do you recommend I see? I just thought it was a sagging neck; it runs in my family.

  70. Danielle March 22, 2016 at 11:34 pm

    No hate here, I have been there. Gave myself a goiter by eating 3 plus pounds of broccolini in 5 days. Did it a few years ago with spinach. Gave up peanuts as well. Gave a presentation about thyroid and goitrogens in pharmacy school in the 80’s. My instructor said don’t worry nobody eats much of these any way. Hah! Seems like asparagus can affect it as well.

  71. Malcolm March 22, 2016 at 11:34 pm

    I am looking forward to learning more about your new “greens” supplement. My current supply of the one I have been using is running low, so I might be ready to try something new.

  72. Ché March 22, 2016 at 11:37 pm

    I appreciated your article. I now understand why I feel sick after eating those foods! In 2018, the doctor discovered I had a goiter and he sent me to a thyroid specialist who aspirated the goiter. It was very painful no sedative! A few weeks ago, my new doctor sent me for an ultrasound, which showed I have two small growths on each side of my thyroid.

    They say they are nothing to worry about, however, I wonder if they are the beginnings of new goiters. I’m tired all the time, increased weight when I don’t eat much, I rarely eat anything sweet because sugar makes me feel sick afterwards, sometimes while I’m eating. So I’m sure I have hypothyroidism since I’m unable to lose weight although I eat really healthy foods, especially raw veggies like broccoli, love cabbage salad with lime & fresh ginger, brussel sprouts, bitter green salads are the best, etc. So funny, even though I usually feel sick and tired afterwards I love the taste. So I’ll cut them out for the time being to see what happens. Stick to romaine lettuce.

    I already cut out nightshades due to fibroids. Miss those tomatoes, peppers, and salsa! I started taking a full spectrum iodine supplement by Terry Naturally, it seems to be helping. I have lost about 5 lbs. Of course, it could be because I’ve been really sick too. I’m being treated for Candida due to heavy antibiotic treatments for about 6 months two years ago. The year after that I fell and sustained a traumatic brain injury! So I’ve been through it lately! Since that time I feel sad all the time and like I may be dying. I’m fighting it, however, I’m getting my affairs in order – contacting an attorney to get my will completed as soon as possible. Don’t want to leave my loved ones in the a pickle. I love life too. It was my goal to live forever in perfect health! LOL! Life goes on and so must I – the best I can. LOL!

    Thanks for the newsletter! You and what you do is appreciated by the “gratefully working” poor! LOL!

  73. Marcia Stone March 22, 2016 at 11:41 pm

    If ingredients are listed as organic kale powder, al alfa grass powder, etc, do you consider that raw or cooked?

    • Suzy Cohen March 27, 2016 at 11:05 pm

      If it’s in a green superfood kind of product, those are all raw.

  74. Cathy Sharpe March 22, 2016 at 11:49 pm

    I just purchased soy protein isolate to make sure I get enough protein in my morning smoothie.
    Not a good idea?

  75. Lisa Braun March 22, 2016 at 11:52 pm

    Don’t forget chickpeas – and things made with them, like hummus.

  76. Nancy R. March 23, 2016 at 12:02 am

    Thank you for this article, Suzy. I was aware of avoiding these raw vegetables, but I did not know that, even cooked, they are bad for Hashimoto’s. I have Hashimoto’s and Candida and my diet is already so restricted that if I drop the foods in the above list I will, almost literally, have so few food options that I will waste away. I have already dropped to 111 lbs. on the autoimmune paleo diet. How can I make this work?!

  77. Laura Daniel March 23, 2016 at 12:07 am

    Wow, that list looks like almost everything!

  78. KK March 23, 2016 at 12:07 am

    Ouch!!! My teenage daughter is dealing w/ thyroid issues (discovered thru a Natural Doctor) and about the only vegetables she likes are cabbage, cauliflower, broccoli…so she gets plenty of these in a week! It will be hard to find other vegetables she likes and that fill her up. That said, I do so appreciate all your research and that you share it with us! 🙂

    • Suzy Cohen March 27, 2016 at 11:06 pm

      Let her eat them, cook them.

  79. Cheri March 23, 2016 at 12:15 am

    Does it make a difference if these items are cooked? Or should I still stay away from them?

    • Suzy Cohen March 27, 2016 at 11:05 pm

      Yes it makes a difference.

  80. Julie Van Zevern March 23, 2016 at 12:17 am

    How much is too much? I love these greens (gosh & strawberries). I don’t eat everyday but a few time s a week. I am hypothyroid and hyperparathyroid! Can’t wait to see what your product is all about. I have used dried greens in smoothies but…. just not the same as fresh.

  81. Christina Tree March 23, 2016 at 12:23 am

    I have Graves Disease but my thyroid was radiated and I am on Tirosant. I love spinach and sweet potatoes so how often can I eat them. I do take an iodine supplement from Standard Process Labs.

    • Suzy Cohen April 1, 2016 at 2:34 am

      As often as you want.

  82. Susan March 23, 2016 at 12:23 am

    I had my thyroid removed almost 40 years ago due to disease ( a choice I would not make today!). I have used Armour Thyroid for years to supplement. Would your thyroid product be appropriate for me?

  83. nancy March 23, 2016 at 12:34 am

    Thank you for the information. I am hypothyroid. Isn’t it okay to get greens if they have been steamed or cooked? I did not know about some of these others. Surprising.

    • Suzy Cohen March 31, 2016 at 5:55 pm

      Of course. Re-read above, something was lost in translation.

  84. D Worden March 23, 2016 at 12:37 am

    I do NOT sell any foods, including ones on your list. But I’m going to send a bit of flak your way anyway.
    If one is getting sufficient iodine, there should be no problem in eating a normal amount of these so-called goitrogenic foods. It is difficult to get enough iodine because of chlorine in water and all products made with it, bromine in flour, and fluoride everywhere — to name just a few of today’s stumbling blocks on the iodine path.
    My family is from the “goiter belt” and I had a relative with a large goiter. But that is to be expected in the central United States, so far away from the ocean and its beneficial waters, plants, and animals with normal and high iodine content.
    It is not possible to be “allergic to iodine” because it is a necessary element for the human body. Healthy, long-lived Okinawans eat much more than 1 mg of iodine daily on average.
    But don’t just listen to me. Dr. Guy Abraham was an early researcher. Currently, Dr. David Brownstein is a great source of information. Naturopathic Doctor Stephanie Buist is one of my (s)heroes due to her work concerning iodine.

  85. A.G. Buchda March 23, 2016 at 12:49 am

    What effect does fermentation have on the goitrogen level in some of these foods (i.e. -kimchi, sauerkraut, etc.)?

    • Suzy Cohen March 31, 2016 at 5:54 pm

      But I’d eat kimchi and sauerkraut unless you have histmaine issues.

  86. Rodney March 23, 2016 at 1:02 am

    Hi Suzy,

    Your product looks interesting but I notice it contains sodium chloride. Isn’t that an iodine blocker and thyroid supressant? Please advise.

    • Suzy Cohen April 1, 2016 at 2:33 am

      There’s like nothing in there, it’s nothing to worry about. It’s there for a little taste.
      EXCESS table salt may be a problem, like if you know a person who shakes and shakes and makes everything salty.

  87. Debbie Goodwin March 23, 2016 at 1:31 am

    Doesn’t leave much for a vegetarian like me. Isn’t it odd that we with hypothyroidism actually crave the cruciferous veggies, and soy products ? …I really appreciate Suzy and the wisdom God gave her.

  88. Cindy Rose March 23, 2016 at 1:37 am

    I have Hashimoto’s and I was diagnosed in my senior year of college at 49. (Yes, 49) I learned the basic information about the thyroid in my studies as a Nutrition Science major. I did my own research and learned so much more information, that mainstream medicine doesn’t want us to know. I’m delighted that you are honest enough to share this knowledgeable information. I’m a Registered Dietitian Nutritionist, which I became so I could educate and share this vital information and so much more. There are too many people under treated and misdiagnosed. I can explain something and they will then tell me, well my doctor or endocrinologist, or pharmacist said… Some believe me, but others are so brainwashed! Thank you, Cindy Rose RDN, LD Las Vegas, NV

  89. Dan Rodriguez March 23, 2016 at 1:39 am

    Is organic flax oil part of the list that I need to stay away from ?

    • Suzy Cohen April 1, 2016 at 2:31 am

      It depends on how you feel. As for goitrogenic effect, I think so.

  90. Laura Arnone March 23, 2016 at 1:43 am

    Thank You Suzy Cohen~ I appreciate your warrior driven spirit for optimal health!!

  91. Newman Ruth March 23, 2016 at 1:43 am

    Dear Suzy, I, having had Breast cancer, eat many of these foods everyday as preventative measures. I am also a loyal follower, so now will eat them in moderation. I add flax seeds most days and most of the raw cruciferous vegetables plus kale frequently!! It is so difficult to do the right thing– i also don’t methylated properly ! I thought I was doing it right but I guess not. I love your information and honesty !!

  92. Julia Pace March 23, 2016 at 1:44 am

    Could you continue to eat all these foods if you take maybe 3 drops of 2% Lugols solution daily and take some selenium off and on? (and are taking Armor 60mg daily?)

    • Suzy Cohen March 31, 2016 at 5:54 pm

      It’s an idea, you may not need that if you cook the food.
      I said “raw” in my article, please review it again, so you get this right it’s very important bc now you are thinking about supplements and I’m not sure you need that.

  93. Linda Bricker March 23, 2016 at 1:56 am

    I was dx’d with graves disease About 15 years ago my thyroid was abated and I take synthroid. I want to know if I can take your iodine supplement. I left a message about. 3 months ago but never heard. I’m very interested in iodine but was told it would be dangerous for me. My labs have been pretty consistent for 5 years. Linda

  94. Beth Revels March 23, 2016 at 2:00 am

    OMG! What else left is there?! There’s so much on here I eat often. 🙁

    Now what do I eat to provide nutritious and fiber rich foods?

    This list is comprehensive – and depressing.

  95. Linda Bricker March 23, 2016 at 2:06 am

    I aw diagnosed with graves diseased with Graves disease about 15 years ago. I take synthroid and have had consistent labs for quite a few years. I was told I should never take iodine but am very interested in your iodine supplement. Please let me know thank you Linda Bricker.

  96. Adriane March 23, 2016 at 2:10 am

    Thank you Suzie for this important info. I’ve also been sounding the alarm about the goitrogens in raw kale, broccoli, etc. I wasn’t aware of some of these, like maca and flaxseed. I’ve noticed that flaxseed worsens my fibrocystic breasts, but assumed it was due to the phytoestrogen content worsening estrogen dominance. Now I realize flaxseed is a double whammy! I tell people to avoid millet altogether since cooking doesn’t inactivate the goitrogenic compounds from what I’ve read.

  97. Joan Wagner March 23, 2016 at 2:18 am

    Does cooking these vegetables inactivate the goitrogens? These are vegetables that I eat a lot of, but mainly I cook most of them. Is spirulina okay to take in my smoothy?

    • Suzy Cohen March 27, 2016 at 11:04 pm

      Spirulina is not a goitrogen.

  98. Sharen March 23, 2016 at 3:09 am

    Hi Suzy! I know that Grave’s Disease is a close relative to Hashimoto’s, and I’ve heard some naturopath’s give The same “natural” prescription for both. Namely, iodine. I have Grave’s and was wondering, would eating these food also be harmful for someone like me or cause the opposite effect and heal my thyroid? One other tidbit of info… I am allergic to mustard and foods related. That’s right, I can’t eat kale, mustard greens, broccoli (many of the foods you listed) without some kind of reaction. Asthma, intestinal reactions, etc. I find it interesting this is so closely related to what you’ve written about today. I wonder if your Thyroid Greens would help in my journey to optimal health.
    Sent from my iPhone

  99. Sheri Schmikl March 23, 2016 at 3:22 am


    I admire you and have learned so much from you over the past few years since I’ve started employing the Functional Medicine approach to my Hashimoto’s. If we’re doing the Auto-Immune Paleo diet and then need to eliminate the list of foods you’ve mentioned, this leaves us pretty limited on what we can eat. Could you please give us some reminders of what we CAN eat? I think a lot of us could use some help with ideas.

    Many thanks,

    • Suzy Cohen March 31, 2016 at 5:53 pm

      Sheri, something was lost in translation, re-read my article. I want you to eat them, cook them. Please enjoy food, it’s one of the best things in life. Congratulation on your FM approach that is going to do wonders for you long-term.
      I’m going to write a little ebook for you, stay in touch with me, to help people with Hashimoto’s know the foods they need to specifically avoid.

  100. Dani March 23, 2016 at 3:26 am

    What are your thoughts on alfalfa used in an herbal preparation, like an infusion. I enjoy 1/2 to 1 quart of an herbal infusion with alfalfa regularly. The herbs do brew in hot water allowed to cool down overnight. Negligible or could it cause issues?
    I’ve recently discovered I may need to avoid goitrogenic foods.
    Very interested about all this!

    • Suzy Cohen April 1, 2016 at 2:31 am

      I’ve never thought of that but the fact that’s it’s heated I would say it’s okay.

  101. Sherry March 23, 2016 at 3:37 am

    Hi Suzy, how are you? I have hypothyroid and The greens and fruits and every thing else on that list I should avoid? Please don’t take away my collards and sweet potatoes What? LOL .If it means getting better I am with it !!! Thanks for that great information you are the best

  102. Joyce March 23, 2016 at 4:22 am

    Are all of one list to be avoided or minimize or just ones in boldface?
    Please clarify?

  103. Joyce March 23, 2016 at 4:23 am

    What about peanut butter?

  104. ESTELLE OGUS March 23, 2016 at 4:40 am

    Thanks for the list Suzy, Its the most comprehensive list I’ve ever seen. Had hypothyroidism over 20 yrs and never heard of many on your list. Flax seed, sweet potatoes, alfalfa sprouts, raw spinach & strawberries are some things I’ve been eating, and will cut down a lot now. How about cooked sweet potatoes and Yams? And mangos? Recently I learned from various online summits about benefits of fermented foods. Soon afterwards i learned from Life Extension, that fermenting cabbage, as in sauer kraut & kim chi, that the fermentation magnifies the goitrogens!!! How about Arugula ? Been drinking dandelion root & leaf tea once daily. Maybe does steeping the tea bag in boiling water deactivate the goitrogens? And what about herbs and spices?
    It was helpful to get your list.Thanks a lot. I told my friend who has hypothyroidism about some things on your list that she eats also. Have a wonderful day!
    By the way, do you know about Were you on an any? Many people all over the planet watch their free wonderful interviews/dialogs. Would be great to hear them interview you about thyroid, hashimotos prediabetes and diabetes. Thanks again, ESTELLE

  105. sherrie March 23, 2016 at 5:00 am

    boy that’s a long list..

  106. sonja March 23, 2016 at 7:11 am

    Hi Suzy,
    Is there a way to work against the goitrogenic properties of these foods except for cooking them and not eating them every day?
    I loved your article though!


  107. Maria Pache, SouthnAfrica March 23, 2016 at 8:04 am

    Hi Suzy,
    I love the way you takle this THYROID issue however I feel some of the cuceferous vegetables I can tolerate like fermented cabbage since the fermentation process has changed the raw ingredient intoa beneficial food! I also have been able to reduce inflamation by adding a drink made from Ginger, Tumeric (golden paste with black peper), raw Honey and virgin coconut oil. I also included 2 drops of Iodene solution with my THYROID-S medication (equivalent of ARMOUR THYROID) and it looks like I am on the right track. I knew about Coconut Oil long before it became fashionable by a lady I met 25 years ago called ELAINE HOLLINGSWORTH in Australia which has a book out called “:TAKE CARE OF YOUR HEALTH and escape the sickness industry” wich contains very valuable information. Just like your two books I have read and absolutely adore “THYROID BOOK and DIABETES book”. Could not do with your Thyroid script – is not enough for my Thyroid problem , however had I been able to get my hands on it when my trouble started 20 years ago I am sure this would have been sufficient!
    I use all the knowledge gained to help my patients go the natural route as well.
    I thank you for all your tenacity and feedback as I am soooo much better of having read your books and keeping in contact with you.

  108. Maaike vanBroekhoven March 23, 2016 at 8:47 am

    Dear Suzy,
    Here in The Netherlands they have a saying: “I’m hanging from your lips”, I listen well and I believe you come with many facts! They are helpfull hopefully to regain my energy sometime!
    I think a list of what isn’t goitrogenic food and also healthy would be NICE!!!!!!!
    Love what you do,
    Ordered some seaweed yesterday and I will take more iodine, didn’t know it can uoset the stomach, my son is complaining about pain. Too expensive for me to order your iodine supplement in the States, I will look for other brands of iodine or do you know any?
    Thanks ever so much,

  109. Romana Miles March 23, 2016 at 11:11 am

    Does it help if you take spirulina?

  110. Romana Miles March 23, 2016 at 11:12 am

    Does taking spirulina counteract the goitrogens?

  111. Verna March 23, 2016 at 12:08 pm

    Thanks for the article (I love these foods & I am on armour). I make sauerkraut , does the fermentation process help this at all?
    Does lightly toasting the flax change the goitrogenic effect?

  112. Claudia Gladish March 23, 2016 at 12:46 pm

    Thank you, Suzy, for being so brave and offering us this heartbreakingly long list which includes foods I regularly eat. My goodness — pears? Strawberries? Sweet potatoes? I enjoy so many cruciferous veggies, but they are cooked. But pine nuts? Maca? Alfalfa? My gosh.

    Revamp needed. I am just starting my garden — what are your favorite safe greens? I can only think of lettuce! I eat mostly raw and vegan.

    You have offered us such good re-education and life-saving information in your wonderful books, and what you teach us proves so helpful to me. In this sad age of GMOs and Pharmiceutical power and the Almighty buck, I am glad that I can trust you.

    I have been bombarded with mixed messages about many of these foods. Here I am with Hashimoto’s, religiously consuming them, losing my hair and watching my brittle nails crumble more than ever lately.

    I use the dehydrator regularly — does it make pears less harmful? And how about fermenting the veggies?

    Again, thank you. Now maybe I’ll regain my energy and health!

  113. Lynn Muffle March 23, 2016 at 1:46 pm

    Thank you Suzy for the list for my Hypothyroid condition – goitrogenic vegetables. Is there any condition that one should avoid eating Plantains and Yucca? I also have a condition relating to Oxalates and I’m following your list as well for histamines.
    You’ve really helped me so much more than my medical doctor.

    Wishing you much success,
    Lynn Muffley

  114. Tony March 23, 2016 at 2:02 pm

    Suzy, I was wondering, relating to your article on goitrogens, would you consider the supplement, DIMM (diidolylmethane), in the class of Goitrogens since its produced from ‘cruciferous vegetables’. I take DIMM and was concerned now with it putting stress on my prostate leading to increase in BPH.

    • Suzy Cohen March 26, 2016 at 2:53 pm

      Yes, although it’s used for BPH. Just have your thyroid levels checked according to my book, page 18.

  115. Carol Sweeney March 23, 2016 at 2:04 pm

    This doesn’t leave much in the way of veggies to eat. What would the sea vegetables be? Thank you

    • Suzy Cohen March 26, 2016 at 2:52 pm

      You can eat them all, cook them. Sea vegetables are okay too.

    • J J March 29, 2016 at 4:16 pm

      Cook them and eat them!

  116. Rosemary March 23, 2016 at 2:22 pm

    I am an active 70 year old woman and have been diagnosed with hypothyroidism and a goiter which I believe is inherited from my grandmother. I am under the care of an endocrinologist for the past 8 years and am taking Levothyroxine 100mg with good results.
    My question to you is, can I take Beta Glucan for my immune system? I spoke to my Dr. about taking this, but she said that she wasn’t sure if the Beta Glucan would interfere with either the hypo or hyper medication. She was honest to tell me that she was not knowledgeable about supplements. Since my current dosage is working for me, she does not want anything to create an imbalance in my treatment.
    I have been following your articles for about a year and find them to be very informative and would like your input concerning this matter. Thank You! Rosemary

  117. Judy March 23, 2016 at 2:48 pm

    Please! Can you Email me a sample diet to follow without goitrogenic foods. I’m so confused! I have all conditions listed that prevent me from eating the healthy fruits and vegetables I love. HELP ! I love your input Sincerely Judy

    • Suzy Cohen March 26, 2016 at 2:51 pm

      Eat them, cooked.
      It’s the raw form I’m referring to, and the powders you find in 100s of commercial green drinks.

  118. Wendy S March 23, 2016 at 3:23 pm

    Very interesting article. I am following an autoimmune paleo protocol. I eat lots of sweet potatoes(cooked) but am not adding some kale and spinach as salads. Is this ok to eat occasionaly then? Not cooked? I have also occasionally ate chard (cooked) and cabbage (cooked. I don’t eant to mess my hashimoto numbers up ad they went down a point! Thank you for your advice!!

    • Suzy Cohen March 26, 2016 at 2:50 pm

      Cook them.
      A point is nothing, you need to get that number down more, and faster. Stay tuned I can help.

  119. Glenda Valley March 23, 2016 at 4:29 pm

    /My husband and I drink fresh juiced carrot, kale, ginger, spinach,celery, green apple (sometimes with broccoli, asparagus, cucumber, lettuce etc) daily. My husband is in his 4th year cancer free he had tonsil cancer, 2 surgeries in Missouri, 4 once a week chemo treatments and 7 1/2 weeks of radiation at CTCA. His blood test on 9/14/15 was T3 3.04, T4 .81, TSH 8.020. Blood test on 3/14/16 was T3 3.01, T4 0.75, TSH 10.500. Doctors at CTCA said he was Hyperthyroid and want him to go on Synthroid, he’s not sure he want to be on another prescription ( on high blood pressure meds already) Off and on for last year or so he was taking Bio Active Nutrients Healthy Thyroid vitamins, I had just ordered from Life Extension Triple Action Thyroid vitamins before the last test. Doctors said they won’t help him but they wouldn’t hurt him. I put him on thyroid vitamins after some research on fatigue. He did 1 month of Milk Thistle (dr said he didn’t need it) and I month Healthy Thyroid, then maybe couple times a week I gave him the thyroid vitamin again last year doctor said he didn’t need it but would hurt to take it. I have emailed Doug Kaufmann but no response yet on this. We switch between Sweet Wheat and Green Vibrance we take this daily is these not good? I just ordered yesterday 4 bottles they had a special deal on Sweet Wheat. Please any and all info is appreciated I don’t want to hurt my husbands health. Please tell me what you would do if you were in this situation. We do the NSC immune boost vitamins etc. Please help with what to juice, taking Sweet wheat and or Green Vibrance . I’ve been watching Doug Kaufmann since 1999 and he has help us so much. Blessings Glenda

  120. Lisa March 23, 2016 at 4:32 pm

    Hi Suzy,

    I didn’t know that maca, sweet potatoes, tatsoi, turnips, and other roots vegetables are goitrogenic.

    What and eye opener. I normally use maca to bring my body temperature up, so I put was putting it in my smoothie everyday. Thank you!

  121. Susie von Ammon March 23, 2016 at 4:52 pm

    Thanks for this eye-opening article, Suzy.

    Both my husband and I are on levothyroxine for hypothyroidism, so your article really hit home. I also take Cymbalta for chronic osteoarthritis, and omeprazole for GERD. We love the cruciferous veggies and eat them often. My question is this: does steaming them take them out of the “raw” category? (not immersing them in boiling water).

    Thank you for your opinion!

    Susie von Ammon

    • Suzy Cohen March 26, 2016 at 2:49 pm

      Eat them, yes steaming is wonderful.

  122. LaraM March 23, 2016 at 4:59 pm

    Sauerkraut is another source of raw cabbage. Does the fermenting process reduce the goitrogens?

    • Suzy Cohen March 31, 2016 at 5:51 pm

      No but I’d eat it anyway. You’re not eating tons. Enjoy!

  123. DW March 23, 2016 at 5:19 pm

    Can you give an example of a reasonable amount of cooked goitrogens?

    For someone with a thyroid condition does it make more sense to greatly reduce all forms of goitrogens?

    • Suzy Cohen March 31, 2016 at 5:51 pm

      Any amount is reasonable, cook them like I explained above.
      Yes DW, it does, but only if they are raw as found in commercial superfood drinks or party platters, or when you juice them in a juicer every day. That’s the trouble, large amounts of RAW.

  124. janet March 23, 2016 at 5:38 pm

    Suzy: What about so many of the whole food supplement capsules on the market now as far as too many goitrogens? I currently have been taking a few [I took the name out] brand supplements that do contain some broccoli & cabbage in them. Is this something I should be concerned about? I eat a very clean diet with no processed foods. My thyroid is border-line hypo, so I am always on the look out for anything that would help me stay off of synthetic thyroid medication. Yikes. Can these whole food supplements be hurting my thyroid?

    • Suzy Cohen March 27, 2016 at 11:01 pm

      YES, those are raw goitrogens.

  125. Luci Martin March 23, 2016 at 7:14 pm

    Suzy, enjoy your articles very much, keep up the excellent work.
    I have low active thyroid problem & I take 75mcg of Levothroxin per day. My question is can I take alfalfa capsules with my daily vitamins?
    From your article here I realize I’m not to have raw alfalfa.
    Thank you most kindly for your time. Luci

  126. Kristina March 23, 2016 at 7:18 pm

    It’s a myth that persons with thyroid issues should be carefult with cruciferous veggies and fruit. While it has been seen in animal studies, it has not been seen in people .. There was one person that you might say came cllose but look at how much she ate to come close.. that’s alot. I can find that you should be careful on so so many articles but none with any examples with humans. To me it iis like saying Cinco De Mayo is when Mexico declared its Independence and that wasn’t true, it was one small part of Mexico not Mexico itself.. Yet, every year it is celebrated like crazy on May 5th and Mexico itself doesn’t make such a big deal.. Here is a piece that Dr. Joel Fuhrman explains: I got it from and I have two other links from two others which I am trying to locate on my extra drive.

    Animal studies suggested the hypothetical thyroid issue from eating very large amounts of cruciferous vegetables years ago. However, no human study has demonstrated a deficiency in thyroid function from consuming cruciferous vegetables. Only one such study seems to have been conducted as of yet; in that study, no effects on thyroid function were observed in subjects eating 150 grams of cooked Brussels sprouts daily for 4 weeks. Raw cruciferous vegetables have not been investigated, however the only case report relating cruciferous vegetables to thyroid harm suggests that it would be almost impossible to consume enough cruciferous to harm the thyroid. This case was that of an 88-year old woman who developed hypothyroidism after eating 1-1.5 kg (2.2-3.3 pounds) of raw bok choy every day for several months; an excessive and unreasonable intake of raw cruciferous. In other words, a person would have to consume an insane amount of raw cruciferous to have a negative effect on thyroid function.

    In fact, the opposite is actually true.

  127. Theoa March 23, 2016 at 7:44 pm

    Dear Suzy,
    Is Yellow Pea Protein considered a Goitrogenic Food? I have been losing eyelashes, brows and long hair for the past year. I have ingested the Pea Protein daily with a handful of Baby Spinach every morning in my VItamix protein breakfast. The Endo thinks that B12 sublingual
    tabs maybe causing this hair loss.
    After reading this article I think I need to cut back on the spinach to a couple of times a week.
    Any thoughts would be wonderful.
    Thank you!

  128. Valerie Hardison March 23, 2016 at 8:13 pm

    What type of veggies should we eat if we are hypothyroid?

    • Suzy Cohen March 27, 2016 at 10:59 pm

      Anything you want, cook them.

  129. Ann Weed March 23, 2016 at 9:58 pm

    What foods can we eat?

  130. cee March 23, 2016 at 10:00 pm

    Thanks, one more category to deepen fear of not eating the right thing.

    Question, if these good foods hurt your iodine level can iodine be gotten into the system? Pills, food, what? Please advise.

    • Suzy Cohen March 26, 2016 at 2:45 pm

      I never said to NOT eat them.
      I said to eat them, cooked. Please enjoy them in their natural God-given state.
      I’m referring mainly to raw powdered forms you find in greens, or when people juice. You misunderstood. Read it again with these ‘eyes’ and you’ll see, I’m not down on kale, just kale powder in “healthy” or fortified drinks.

  131. Nancy March 23, 2016 at 10:17 pm

    I’ve. been consuming two tablespoons of flax meal daily for fifteen years! Is it time to stop? Thank you for all of the information you provide. Nancy

  132. Richard Kurylski March 23, 2016 at 11:14 pm

    As we see there’s nothing to eat, because there’s always something harmful in every food. So what we are left with is to start fasting permanently not intermittently.
    By the way, only cooking broccoli, etc do we get rid of the threat … But what’s the point of doing so if we end up consuming the food devoid of practically any nutrients.
    And what to do with strawberries? Should we eat them once a … year? And perhaps not more than 100g.
    But now seriously, there must be some way out of this situation, I mean there must be some food that will neutralize the goitrogens. Do you have any idea?
    Thank you anyway for this useful information.

  133. Maggie Holt March 23, 2016 at 11:51 pm

    OMG, I’m putting this list on my fridge!!! I’m on 75mg of levothyroxine, still not losing weight, and MOST of my favorite foods are on this list. I generally cook them because I somehow realized that I feel better eating cooked, rather than raw, veggies (but I don’t cook strawberries). I’m almost 79 and just beginning (2+ years ago) to realize that what I thought was a good diet was not necessarily so. I just realized I can’t eat corn, my go-to comfort food forever–it’s apparently, for me, worse that “ancient” wheat, which doesn’t seem to bother me when used very sparingly. And now I see this list of all my favorites! EGAD! But I feel so much better since I’ve drastically changed my eating habits to virtually all organic, no-hormone no-antibiotic meats and dairy, and gluten free that I think this will not be a major problem, especially since I cook them when I do have them (except strawberries, which I might have to learn to live without and cry a lot). Thanks for all your information!

  134. Pam Anderson March 24, 2016 at 2:34 am

    What are foods we should eat

  135. Heather Simpson March 24, 2016 at 2:47 am

    Hi Suzy, is there any way to neutralize the goitrogens in flax?I didn’t know about pine nuts – does soaking them make any difference?

  136. Terry Aldrich March 24, 2016 at 4:38 am

    Thank you, Suzy. NOT for naming everything I love,(!) — but for making me aware of what they are doing to my health. I had a goiter removed when I was just 14 years old and have had a thyroid problem ever since. ( I’m now 80 but in rather good health). I also have a grand case of IBS, so I look forward to your very helpful columns. I keep a folder full of them.

    You are a true blessing to so many, and I very much appreciate you and the effort you put forth for us.

  137. Becky March 24, 2016 at 2:42 pm

    Suzy-two questions please. Is fermented cabbage considered raw? Is organic peanut butter considered a raw form? I am not sure how one consumes a cooked version of peanuts…I guess they could be boiled in the shell.

    • Suzy Cohen March 31, 2016 at 5:45 pm

      1. yes, and it has goitrogens but read my other comments about this.
      2. yes, just enjoy minimum amounts, don’t eat PB & J every day.

  138. Kim Burke March 24, 2016 at 5:50 pm

    I have a goiter and so many other symptoms you have listed. Not once has my doctor ever mentioned any of this to me over the years .the only thing he suggests is surgery. I am changing my diet now which consists of so many of these foods .thank you for this knowledge !!

  139. Ela Conner March 24, 2016 at 6:08 pm

    Hello Suzy, I love your articles and I am one of your loyal followers. You know I understand what you are saying but because I believe in a creator and what I read in the scriptures tells me plants are for food something seems wrong. So I have trouble believing that these foods cause the body harm unless the real reason they cause us harm is they have been hybridized and now they aren’t part of the original plan. I have been doing research and it appears that there are foods that aren’t in their original form. I also have to ask the question why does it interrupt our iodine absorption? There has to be a reason. Plants provide us life. Just putting it out there, that something has been changed from the original and that is why it is disrupting the body.

    • Suzy Cohen March 26, 2016 at 2:42 pm

      It’s not that the foods are “bad” but makers concentrate raw powdered forms of them, and people drink large amounts of them in green drink mixes (superfood drinks), instead of eating them and cooking the veggies the way they were intended. I’m all for eating kale, just saying to steam or cook it, not to drink concentrated powders of raw kale (that is not natural). So you and I agree 🙂

  140. Sayeh Farah March 24, 2016 at 7:02 pm

    Is there anywhere a list of foods/veggies/etc that CAN be eaten if you have a thyroid issue.

  141. Jewel Dodgens March 24, 2016 at 7:13 pm

    what about hyperthyroidism

  142. Kate March 24, 2016 at 9:42 pm

    Hi Suzy,
    I thoroughly enjoy reading your weekly emails. They are always informative and helpful.
    I have Hashimoto and dry eyes. My Ophthalmologist put me onto flaxseed oil supplements. He prefers this over fish oil as the lipids in the oil are the closest to our own lipids produced in tears.
    Your goitergen list mentions “Flax”…. Does this include Flaxseed oil? Hoping not – as the supplement seems to be working well for my dry eyes. I have been on flaxseed (2 capsules per day) for the last three months.

    • Mercy March 27, 2016 at 12:16 am

      Can you give.a list of fruits,.vegetables & nuts that are not harmful for human body?.For that matter any kind of food that you recommend.

  143. Dale Welsh March 25, 2016 at 12:06 am

    Confused! Hi Suzy I’m type 2 diabetic and recently finished taking a nutrition class. The doctor strongly recommends cruciferous vegetables and especially Kale to lower blood sugars. Although he did not specify how to eat them (raw/cooked). And foods like sweet potatoes are good alternatives for you. Any advice for people with type 2 diabetes.

    • Amanda March 26, 2016 at 5:04 pm

      I am a type 1 diabetic, with insulin resistance (which is basically type 2). I was told to eat lots of cooked cruciferous vegetables by a very knowledgeable nutritionist / functional medicine provider. So, I cook a big bunch okale and eat as much as I can throughout the week.

      • Suzy Cohen March 27, 2016 at 10:58 pm

        Good, great. Cook em and eat em up!

    • J J March 29, 2016 at 4:04 pm

      I don’t know about you but sweet potatoes raise my blood sugar so much I won’t eat them anymore. If it is like the usual nutrition classes they offer to diabetics these days there will be a lot of foods they recommend you eat that will raise your blood sugar. Just from experience on my part and all foods do not effect all diabetics the same. Good luck on learning new ways to eat and other foods to experiment with and avoid if necessary.

  144. Chris March 25, 2016 at 1:12 pm

    Regarding the foods you can’t eat. Can you eat them if they are cooked?

    • Suzy Cohen March 26, 2016 at 2:38 pm

      Yes, of course.

  145. carol smythe March 25, 2016 at 4:27 pm

    I would appreciate any help on finding a a “shake” powder that does not contain goitrogens.

    Also, are the goitrogen foods okay if they are cooked?

  146. Joan March 25, 2016 at 6:12 pm

    I use spirulina in my smoothie. Is this a goitrogenic food? If we eliminate all these foods, there does not seem to be too much left to eat. I guess moderation is the key, and cooking the vegies helps. Joan

  147. Dan March 26, 2016 at 2:55 pm

    is organic flax seed oil on the list also?

  148. Dan March 26, 2016 at 2:57 pm

    is organic flax oil on the list also

  149. kiaren March 27, 2016 at 2:36 am

    What about barley grass/greens, as In Dr. Hagiwara’s Green Magma supplement? Would these be considered goitrogenic?

    I also eat tons of almonds, my daily snack food … sometimes peanuts, sunflower seeds, pumpkin seeds, but ALWAYS almonds. Even sprouted almonds?

    I understand even “healthy” fermented veggies can be goitrogenic, (eg. Kim Chi)??

    Interestingly, I stopped my Armour and Cytomel a couple months ago because I started to have heart palpitations. Today, I read elsewhere online that goitrogenic foods, by virtue of suppressing thyroid function, sends a signal to the adrenals to release more adrenalin, which can stimulate heart palpitations. Perhaps adding my meds back in would stop the palps, not create them…

    • Suzy Cohen March 31, 2016 at 5:02 pm

      I found your comment now. Yes, those are all goitrogenic. Fermentation doesn’t neutralize it. But it’s such a small amount I wouldn’t worry about it (kimchee). If you’re getting a lot then yes, you need to cut back.
      I can’t answer about starting stopping medicines, I’m not allowed, only a doctor. I can tell you that hypo and hyperthyroidism (both) can lead to palpitations so it’s a consideration.

  150. Lorraine March 28, 2016 at 2:49 am


    Dr. Kharrazian explains in his thyroid book to stay away from iodine supplements if one has hashimoto’s. Are you in agreement?

    • Suzy Cohen April 1, 2016 at 2:30 am

      Sometimes yes, sometimes not. It depends on a few factors. It’s too long to re-explain it here. I’ve explained this over and over in various interviews, a few of my articles, my books and the Thyroid Summit.

  151. Sandy March 28, 2016 at 3:49 pm

    Thank you Suzy for all your information and what you do to inform us.
    Geez have I ever been doing myself a dis service.. I eat spinach salads several times a week. I use it in place of lettuce or greens!! So it’s all consumed raw. I rarely cook it.. Oh me oh my!!!! Now thanks to you I better start changing my tune?
    I did order a 3 pack of your greens and am anxious to try them. I have been a health nut for as long as I can remember, always education myself. Thanks for helping me do that. I haven’t done a bad job so far.. Almost 58 no meds ever.

    I have a question unrelated to me.. My friend ( IMHO) has been let down like so many by our medical industry. She has been ill for the better part of 10 years and they have finally diagnosed her with Graves. Why did it take so long to get to that diagnosis? I’m disgusted often by what I see. I often encourage people to take their health and research into their own hands.. SORRY I segwayed.. I’m passionate about health and most doctors aren’t..
    Can my friend use your greens and do you have any information that I can give her to research or read about Graves?. I send her your stuff all the time and have connected her to you. Her question is, will her book and products help me?

    If you have anything you can send me to direst me to I would be most happy. My friend is very open to natural thing and trust that inbound never lead her down a bad road..
    Thanks you

    • Suzy Cohen April 1, 2016 at 2:28 am

      The answer is… well, how can I say this nicely… 10 years to diagnose her properly? Because she was seeing some stupid doctors. There are MANY MANY wonderful, incredible bright intelligent physicians, everywhere, in every city. I don’t know how this could escape them for 10 years. Give her a copy of your Thyroid Healthy book, it has a chapter on it.

  152. susie March 29, 2016 at 1:57 am

    I was told I have hyperthyroid. I lost 15 to 20 lbs now I have gained it all back and can’t loose it . I was told I had Graves disease. I had a doctor wanting me to kill my thyroid I said no he dropped me as a patient. I had a uptake scan no goiter just very slightly elevated. What do i need to do?

    • Suzy Cohen March 31, 2016 at 5:42 pm

      I explained some treatment protocols that I know of in my book, “Thyroid Healthy” book, it’s in that chapter. If you don’t have a copy, it’s here.
      It’s always sad when doctors bully their patients into surgery or radiation or just drop you if you don’t comply. Good for you, now it’s time to fix this.

  153. Lynne Garwood March 29, 2016 at 11:32 am

    What about oxalates – I notice your Green Thyroid drink contains beetroot – high in oxalates.
    All dark, good for us, colours of the rainbow that we are encouraged to eat for our health are mod to high in oxalates, I have recently listened to the microbiome medicine summit and it seems the problem is not with the food but our microbiata – our personal gut bugs. If we don’t have the bacteria oxalabacter (easily wiped out by medications/antibiotics or second best L Plantarum we will have a problem with oxalates. Is there similar bacteria/gut bugs required to help us with goitrogenic substances. I hope you will reply. all very confusing (but I do get the cooked bit with the goitrogens but I did hear a functional practitioner/expert on a summit last year talking of the benefits of broccoli sprouting and he said that cooking reducing goitrogens and oxalates was a myth and infact it increased their absorbable levels. I hope to hear your theories please. Thanks Lynne

    • Suzy Cohen March 31, 2016 at 5:39 pm

      I only have a minute to comment, there are over 7,000 comments on my forum 😉
      I hope you understand.
      1. My Thyroid Greens (click on shop) doesn’t have a lot of oxalates at all, those are found in high amounts in crucifers and goitrogenic foods. Yes, it has a small amount of beet root to help with flavoring and as an aside, it contains compounds for blood pressure.
      2. I missed the microbiome summit but I agree with your statement (we are wiped out for sure).
      3. It’s best to cook the goitrogens, eat them as you wish cooked or steamed, etc. It’s when they are in high concentrated amounts in a raw form, as those found in many commercial green drinks.

    • Deanna April 1, 2016 at 11:25 pm


      Check out the yahoo Trying Low Oxalates group. Susan Costen Owens is the listowner and she has been researching oxalate related issues for over 20 years. They have an extensive up to date list of the oxalate levels in foods, and the members there are very helpful. I found the low oxalate diet extremely helpful for my kidney stones.

    • Deanna April 1, 2016 at 11:31 pm

      Also, forgot to say that boiling actually does reduce the amount of oxalate in many foods, as long as you throw out the cooking water. The soluble oxalate content goes into the water. As far as I know, sprouting does not decrease the oxalate amount.

      Do try the yahoo group. the folks there have been dealing with oxalate issues for a long time and are really helpful.

  154. Dani March 29, 2016 at 1:13 pm

    What about sauerkraut? The cabbage is not cooked but saurkraut made the traditional way is a naturally fermented food and is supposed to be a powerhouse, natural probiotic and all.

    • Suzy Cohen March 31, 2016 at 5:14 pm

      Fermentation doesn’t neutralize goitrogens, however, I’d eat it for the health benefits. It’s a small or moderate amount and a “powerhouse” like you said.

  155. ron March 29, 2016 at 2:18 pm

    We don’t cook our salads or smoothies, we pulverize the greens,spinach and kale in the blender and add raw broccoli and culiflower as well as strawberries, flax seed. Very confusing comments.

    • Suzy Cohen March 30, 2016 at 7:41 am

      I personally would NOT blend all those goitrogens into a smoothie or drink commercial superfood blends with them.

  156. Lisa March 29, 2016 at 4:06 pm

    What if I have had my thyroid removed (I have)? Do I still need to avoid uncooked goitregenic foods?

    • Suzy Cohen March 31, 2016 at 5:12 pm

      Everything applies that I wrote, even if you do not have a thyroid gland.
      There are other receptors in your body that are hungry for iodine (men with prostates, women with breasts, uterus/reproductive organs)… so I would say that cooking them is great, raw is not.

  157. Debbie March 30, 2016 at 12:48 am

    Hi Suzy…I would like to try the Thryoid Greens but I read that the gluten factor depends on how the wheat grass is harvested and produced. If the wheat grass is allowed to grow seed prior to the harvest then it will contain gluten. With Celiac and thyroid problems I am not sure if I should risk trying it as much as I really want to. Do you know if there is a cross contamination risk?
    Thank you.

    • Suzy Cohen March 30, 2016 at 7:29 am

      It’s gluten-free, I have been assured. If you are uncomfortable or afraid I understand. Don’t try anything unless you’re sure.

  158. jackie diffendarfer March 30, 2016 at 2:11 am

    just started with this delicious Green drink and love it. Can it be taken twice a day? Also when our the free gifts available?

    Would you please give opinion concerning MCT oils


    • Suzy Cohen March 30, 2016 at 7:27 am

      Thank you! Did you not get your free gifts? It was a link in your email, sent immediately. Check your inbox, and emailed receipt.

  159. Lenny Szubinski March 30, 2016 at 5:10 am

    Hi Suzy. I’ve read your article on green drinks and the damage that they can do to the thyroid gland. I would like to know if this applies to Spirulina as well? That has been my green drink of choice for the past year.

    • Suzy Cohen March 30, 2016 at 7:26 am

      Spirulina is NOT a goitrogen so you are fine with that.

  160. kiaren March 30, 2016 at 9:26 pm

    Is there some reason you keep editing out my comments, Suzy? This is twice now and it’s quite offensive.

    I wasn’t asking for medical advice, if that’s your misinterpretation. You should feel complimented people follow you and beg your knowledge. That’s the whole point, isn’t it? Jeesh.

    • Suzy Cohen March 31, 2016 at 4:58 pm

      Hi Kiaren
      I’m not editing you out, I have thousands of comments to read today alone, it’s not humanly possible… some are extremely wrong, some are inappropriate, some are spam, some are advising people incorrectly/dangerously. I cannot humanly get to them all so NOT ALL OF THEM SHOW UP HERE, there are too many, until me or one of my staff hit “approve.” And then they post.
      I think that’s why you don’t see your comments, but be assured I am not editing you out.

  161. Noel March 31, 2016 at 2:04 pm

    You have indicated that RAW FLAX SEED is a goitrogen. I would assume that raw flax seed OIL is also a goitrogen. Is that correct?

    • Suzy Cohen March 31, 2016 at 5:10 pm

      It’s okay to sprinkle some in your salad. Moderation.
      It has lots of benefits. I am not sure about high-dose oil supplements on a daily basis, would think NO, or just short term, like for a woman, say 7 days of every month for her period if PMS is an issue… one is short-term, or low dosage vs. A LOT every day.

  162. […] problem: Goitrogenic foods. (Kale, broccoli, cabbage, Brussels sprouts=tiny cabbages, strawberries, pears, peaches, peanuts […]

  163. Monica Castro April 2, 2016 at 7:27 pm

    Hi Suzy,
    I have hypothyroidism and I’ve been drinking green smoothies for a few years now, no powder, but real leaves.Although I rotated the greens, I wasn’t knowledgeable about goitrogens on collard greens, bok choy and spinach, which I was consuming every week. No wonder my eyebrows never grew back, although they try to…My hair is not what it used to be as well.
    I have been drinking your thyroid greens powder now and I am enjoying it very much. I had a question regarding your thyroid smoothies recipes; they include bananas, mangos, dates, pineapples – i’ve been avoiding these fruits because i am pre-dibeteic. Shall I keep avoiding them?
    Thank you,

    • Suzy Cohen April 10, 2016 at 11:47 pm

      Hi Monica
      It’s okay in moderation, the fruits have tremendous phytonutrients and antioxidants, or you can substitute them for less starchy fruits if you like. You can adjust the ingredients to your palate. Most people enjoy the greens in plain water, so that’s another way to get the benefits, without all the sugar. My smoothie book was to help newbies get greens down. Many people are new to greens, or they have kids and they like to make these drinks in the summertime, but you can just drink them straight with water. Your hair is going to be pretty again, give it a little more time.

  164. Rob April 5, 2016 at 4:39 pm

    If a person is hypothyroid, on brand name levothyroxine – what is the “safe” amount and frequency at which to still enjoy some raw broccoli, cauliflower, cabbage, spinach…and perhaps other cruciferous vegetables COMMONLY offered and widely enjoyed RAW?
    Any guidelines to keep us within a reasonable zone of safety?
    Thank you.

    • Suzy Cohen April 6, 2016 at 12:05 am

      It’s really up to you, how you feel. If you feel really well go for it.

      • Rob April 6, 2016 at 9:42 pm

        So, to be sure I correctly understand your answer: those who are hypothyroid can actually safely consume raw, goitrogenic cruciferous vegetables to the extent they choose as long as they feel well? No risk?

  165. Cheyenne April 6, 2016 at 1:22 pm

    Suzy, thanks for the reminder! I get way too many goitrogens in my diet. Maybe sometimes you could do an article on the herbs that have goitrogens. I love your articles. (No way anyone should ever expect you to reply to all the comments. People ask for too much.)

    • Suzy Cohen April 6, 2016 at 8:41 pm

      That’s a good idea, thanks 🙂
      (Oh but people do, it’s just one question, it’s really just one… but I have over a million in readership).

  166. Patty April 6, 2016 at 9:47 pm

    Thank you Suzy for this valuable information. I no longer juice anything because I was gaining weight by doing so and my belly would swell …terribly, afterwards. I am just starting your Thryoid greens and I hope this is the answer to my problem. I do however eat a lot of steamed, or cooked goicodren foods..dead foods, as my daughter calls them, lol

  167. […] Read the full article here: The Case Against Kale […]

  168. Joan Scherer April 10, 2016 at 7:15 pm

    Thank u for delicious Green drink. Love it. Question: recently found out that MOST thyroid medications have gluten in them. You say?

    • Suzy Cohen April 10, 2016 at 11:26 pm

      Medicine is more important in this case. Not all of them have gluten though.

Comments are closed.