Thyroid Food Checker: What You Can Actually Eat With Hypothyroidism
Find out what matters for the food you want to eat.
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Diet details that can change your answer
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Written and medically reviewed by Dr. Westin Childs, D.O. Last reviewed: August 28, 2026. Food checker and page updated: September 14, 2026
How To Use This Checker:
#1. Choose Your Thyroid Situation And Medication
Choose your thyroid condition and the type of medication you take. Open “Diet details” if you need to avoid gluten, take iodine, or are following a prescribed low-iodine diet. These details can change the recommendation.
#2. Search For A Food, Drink Or Herb
Type a food name, then select the match you mean. You can check peanut butter, chia seeds, ancient wheat, different types of milk, maca, ashwagandha and more. The search suggests close matches for common misspellings. You can also browse every food by category.
#3. See What I Recommend For Thyroid Patients
Each result explains whether the food fits your thyroid situation, what nutrients it provides, its iodine content, and how to use it. Where relevant research exists, you can see what was studied, who was studied, and what changed.
#4. Check The Next One
Your answers stay selected while you check another food. Save or print a result you want to keep. If a food is missing, use “Request this food” to send us its name for a future update.
What Makes A Food A Good Choice For Your Thyroid?
A food can be gluten-free and still be a poor choice. Another can contain goitrogens and be something I recommend eating regularly. You need more information than a list of foods to avoid.
I look at what a food provides and how it affects the problems thyroid patients actually deal with: low energy, constipation, difficulty losing weight, blood sugar swings and food sensitivities. Preparation matters, too. That’s why cooked broccoli, a large raw kale juice and a kelp capsule each get a different recommendation.
- Thyroid-supporting nutrients. Protein, iron, zinc, selenium and other nutrients belong in a thyroid-supportive diet. When a matching USDA record is available, the result includes amounts for a clearly identified portion and preparation.[1]
- Iodine content. Your thyroid needs iodine, but more is not always better. Seaweed, dairy and seafood can provide very different amounts. The checker uses measured food values where available and says when a reliable amount is missing.[2][3]
- Gut tolerance. Constipation, bloating and food reactions matter. Hypothyroidism can slow digestive movement, and some patients also have lactose intolerance or celiac disease. That does not mean every legume, grain or dairy product affects everyone the same way.[4][5][6]
- Preparation and medication timing. Cooking, fermentation and choosing the right form can change how well a food fits. Coffee can interfere with levothyroxine tablet absorption when taken together. If you keep drinking it, wait at least 60 minutes after your thyroid medication before you have it.[7]
- Benefits beyond thyroid labs. A food may help bowel regularity, support protein intake or provide useful polyphenols without having a trial showing lower TSH. The result explains when a study is about thyroid patients and when it is about another group.[8]
My Food Recommendations For Thyroid Patients
These are the recommendations behind the checker. You will see the relevant exceptions in your individual result.
- Eat fruit regularly. I strongly recommend fruit for thyroid patients. Berries, citrus, pomegranate and other fruits provide different polyphenols, along with nutrients and fiber. Whole fruit and juice have different portions and fiber content. For example, blueberry and orange-juice trials have studied blood-vessel benefits, not treatment of hypothyroidism.[9][10]
- Keep vegetables, including cruciferous vegetables. I prefer cooked broccoli, kale, cabbage and similar vegetables for thyroid patients. Their benefits generally outweigh the goitrogen concern at ordinary food servings. Cooking changes goitrogenic activity. In human studies, cooked Brussels sprouts and a broccoli-sprout drink didn’t harm thyroid function.[11][12]
- Choose a better grain if you tolerate gluten. I prefer ancient wheat and traditionally fermented sourdough over ordinary modern wheat products for thyroid patients who tolerate them. Wheat research documents differences in mineral concentration and gluten composition, and a small Kamut trial found better symptom scores in people with IBS. Ancient wheat and ordinary wheat sourdough still contain gluten, so they are not options for celiac disease.[13][14][15][6]
- Match milk to the problem you are trying to solve. I prefer lactose-free milk for lactose intolerance, A2 milk for some people who tolerate A2 protein better, and lactose-free ultra-filtered milk when a higher-protein option fits a weight-loss meal. A2 milk is not safe for a milk-protein allergy. For protein powders, I generally prefer clean plant-based options for thyroid patients.[16][17]
- Be specific about herbs. Ashwagandha extract has trial data in subclinical hypothyroidism. Maca has been studied for sexual function and other symptoms, but it does not have the same thyroid-trial evidence. The checker separates extracts from powders and raw maca from gelatinized maca.[18][19]
- Skip alcohol, and I recommend avoiding coffee. These are my recommendations for thyroid patients. The alcohol entry explains the pituitary-thyroid research and the coffee entry explains medication absorption and practical timing for people who continue drinking it.[20][7]
For more of my reasoning, read my thyroid diet guide, foods I recommend for Hashimoto’s and thyroid nutrition facts. Each food result also links to the relevant articles.
Frequently Asked Questions
Yes. I recommend cooked broccoli for thyroid patients. It provides fiber, vitamin C and other useful compounds. Steam or roast it, and adjust the portion if it leaves you bloated. A normal serving is fine, but be careful with large amounts of raw green juice. Research in people hasn’t shown that you need to avoid ordinary cruciferous vegetables.[11][12]
I recommend limiting soy for thyroid patients. If you eat it, I prefer organic soy, with attention to the amount and form. A serving of tofu is very different from a concentrated soy-isoflavone supplement. Trials in subclinical hypothyroidism haven’t all produced the same result. If you take levothyroxine, avoid taking soy with the tablet and keep your intake consistent.[21][22][23]
I often recommend a gluten-free trial for thyroid patients with Hashimoto’s who have symptoms that may be related to gluten. If celiac disease is a possibility, get tested while you are still eating gluten, because removing it can affect the results. Celiac disease requires strict avoidance. Some people without celiac disease tolerate ancient wheat or traditionally fermented sourdough better, but neither is gluten-free. A small gluten-free diet study in Hashimoto’s provides a reason to study this further; it does not prove that everyone needs the same diet.[6][24]
No. A prescribed low-iodine diet is a temporary preparation for certain radioactive iodine treatments. It is not the diet I recommend for every person with hypothyroidism or Hashimoto’s. If you’re on one, select that option in the checker and follow your doctor’s food list and timeline. That setting takes priority over an otherwise favorable food recommendation.[25]
Related Tools
- Thyroid Medication Timing Optimizer: your whole day scheduled around your dose
- Optimal Thyroid Lab Calculator: see if your labs are optimal
- Thyroid Score Test: how optimized is your thyroid, 0 to 100
- All Thyroid Calculators & Quizzes: the full set of free tools
Scientific References
The references below support the explanations on this page. Each food result has its own source list for its nutrient values, research and practical guidance.
1. USDA FoodData Central: food nutrient composition View source
2. USDA/FDA/NIH: measured iodine per serving, 2024 food database View source
3. NIH: iodine in foods, goitrogens and excess intake View source
4. Yaylali O, Kirac S, Yilmaz M, et al. 2009. Does hypothyroidism affect gastrointestinal motility? Gastroenterology research and practice. doi:10.1155/2009/529802 View source
5. Asik M, Gunes F, Binnetoglu E, et al. 2014. Decrease in TSH levels after lactose restriction in Hashimoto's thyroiditis patients with lactose intolerance. Endocrine. doi:10.1007/s12020-013-0065-1 View source
6. NIDDK: gluten, grains and celiac disease View source
7. Benvenga S, Bartolone L, Pappalardo MA, et al. 2008. Altered intestinal absorption of L-thyroxine caused by coffee. Thyroid : official journal of the American Thyroid Association. doi:10.1089/thy.2007.0222 View source
8. Gearry R, Fukudo S, Barbara G, et al. 2023. Consumption of 2 Green Kiwifruits Daily Improves Constipation and Abdominal Comfort-Results of an International Multicenter Randomized Controlled Trial. The American journal of gastroenterology. doi:10.14309/ajg.0000000000002124 View source
9. Curtis PJ, van der Velpen V, Berends L, et al. 2019. Blueberries improve biomarkers of cardiometabolic function in participants with metabolic syndrome-results from a 6-month, double-blind, randomized controlled trial. The American journal of clinical nutrition. doi:10.1093/ajcn/nqy380 View source
10. Morand C, Dubray C, Milenkovic D, et al. 2011. Hesperidin contributes to the vascular protective effects of orange juice: a randomized crossover study in healthy volunteers. The American journal of clinical nutrition. doi:10.3945/ajcn.110.004945 View source
11. McMillan M, Spinks EA, Fenwick GR. 1986. Preliminary observations on the effect of dietary brussels sprouts on thyroid function. Human toxicology. doi:10.1177/096032718600500104 View source
12. Chartoumpekis DV, Ziros PG, Chen JG, et al. 2019. Broccoli sprout beverage is safe for thyroid hormonal and autoimmune status: Results of a 12-week randomized trial. Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association. doi:10.1016/j.fct.2019.02.004 View source
13. Fan MS, Zhao FJ, Fairweather-Tait SJ, et al. 2008. Evidence of decreasing mineral density in wheat grain over the last 160 years. Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS). doi:10.1016/j.jtemb.2008.07.002 View source
14. Pronin D, Börner A, Weber H, et al. 2020. Wheat (Triticum aestivum L.) Breeding from 1891 to 2010 Contributed to Increasing Yield and Glutenin Contents but Decreasing Protein and Gliadin Contents. Journal of agricultural and food chemistry. doi:10.1021/acs.jafc.0c02815 View source
15. Sofi F, Whittaker A, Gori AM, et al. 2014. Effect of Triticum turgidum subsp. turanicum wheat on irritable bowel syndrome: a double-blinded randomised dietary intervention trial. The British journal of nutrition. doi:10.1017/s000711451400018x View source
16. NIDDK: lactose intolerance and dairy choices View source
17. Choi Y, Kim N, Song CH, et al. 2024. The Effect of A2 Milk on Gastrointestinal Symptoms in Comparison to A1/A2 Milk: A Single-center, Randomized, Double-blind, Cross-over Study. Journal of cancer prevention. doi:10.15430/jcp.24.007 View source
18. Sharma AK, Basu I, Singh S. 2018. Efficacy and Safety of Ashwagandha Root Extract in Subclinical Hypothyroid Patients: A Double-Blind, Randomized Placebo-Controlled Trial. Journal of alternative and complementary medicine (New York, N.Y.). doi:10.1089/acm.2017.0183 View source
19. Gonzales GF, Córdova A, Vega K, et al. 2002. Effect of Lepidium meyenii (MACA) on sexual desire and its absent relationship with serum testosterone levels in adult healthy men. Andrologia. doi:10.1046/j.1439-0272.2002.00519.x View source
20. Willenbring ML, Anton RF, Spring WD Jr, et al. 1990. Thyrotropin and prolactin response to thyrotropin-releasing hormone in depressed and nondepressed alcoholic men. Biological psychiatry. doi:10.1016/0006-3223(90)90017-v View source
21. Sathyapalan T, Manuchehri AM, Thatcher NJ, et al. 2011. The effect of soy phytoestrogen supplementation on thyroid status and cardiovascular risk markers in patients with subclinical hypothyroidism: a randomized, double-blind, crossover study. The Journal of clinical endocrinology and metabolism. doi:10.1210/jc.2010-2255 View source
22. Sathyapalan T, Dawson AJ, Rigby AS, et al. 2018. The Effect of Phytoestrogen on Thyroid in Subclinical Hypothyroidism: Randomized, Double Blind, Crossover Study. Frontiers in endocrinology. doi:10.3389/fendo.2018.00531 View source
23. Synthroid prescribing information: food and medication interactions View source
24. Ülker MT, Çolak GA, Baş M, et al. 2024. Evaluation of the effect of gluten-free diet and Mediterranean diet on autoimmune system in patients with Hashimoto's thyroiditis. Food science & nutrition. doi:10.1002/fsn3.3833 View source
25. American Thyroid Association: prescribed low-iodine diets View source
