Healthline
healthline.com › health › hypothyroidism-vitamins-to-avoid
Hypothyroidism: Vitamins, Foods, and Beverages to Avoid
June 21, 2025 - In people who are more prone to ... type of hypothyroidism caused by an autoimmune reaction. ... Similar to iron and calcium supplements, some evidence suggests that certain foods and beverages may interfere with the absorption of levothyroxine.
British Thyroid Foundation
btf-thyroid.org › diets-and-supplements-for-thyroid-disorders
Diets and supplements for thyroid disorders
Are there certain foods or supplements that affect thyroid health? Are there any I should consume or avoid?
What are the best supplements against hypothyroidism?
Selenium - Brazil nuts are a great source. Are you open to supplementing w t4 or t3? More on reddit.com
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September 10, 2023Supplements for hypothyroid?
Rules of r/supplements Do Not Suggest Prescription Drugs Posts & Comments Reported as: Do Not Suggest Prescription Drugs Prescription drugs are not Supplements; do not recommend prescription medication. Sensible/Suggest talking to DR. can be allowable etc 2. Dangerous Grey Area Substance Posts & Comments Reported as: Dangerous Grey Area Substance Potentially dangerous grey area substances can not be recommended. 3. Be Polite Posts & Comments Reported as: Rude/Personal Attacks You shouldn't ever be personally attacking another user in this subreddit. 4. No Advertisements Posts & Comments Reported as: Advertisement. No selling / buying / trading posts No advertisements. No selling/trading posts between users.” I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns. More on reddit.com
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May 14, 2024best supplements?
Iron, ferritin, D3, B12 and folate are commonly all low with hypothyroidism. To fix the iron you need to test first, and only supplement if you're deficient (ferritin below 50 = deficient), then re-test 6 months and a year later to insure you're in the optimal range (50-100 ferritin) and not headed for toxic levels. That's true with supplementing any of the metals, including selenium that you'll see mentioned here frequently. It's pretty rare that anyone is low in selenium. The others you can safely supplement without testing, as you'll generally just pee out any excess. You can take 1000-2000IU of D3, 25mcg B12, and up to 400mcg of folate without testing. Getting my ferritin in range gave me more symptomatic relief from fatigue than anything the levothyroxine did, by far. edit: Why can't you take biotin? It won't hurt anything for most people. Yes, it CAN screw with thyroid test results, but simply stop taking it 3 days before you have blood drawn, and it's fine. More on reddit.com
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September 1, 2024[deleted by user]
i’ve been taking most of these + aloe vera for a few months now. for selenium i eat 2 brazil nuts a day. i really think black seed oil has helped a lot, my TPO was around 850 last year and now it’s at 441 :) my TSH dropped from 31 to 6 with no meds. obviously everyone is different and i did just have an appointment today to get thyroid meds finally but this is a great list! More on reddit.com
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January 24, 2023Videos
Avoid These Supplements if You're on Thyroid Medicines ...
09:12
The WORST Supplements For Your Thyroid - YouTube
11:25
Supplements That HARM Your Thyroid (Avoid These!) - YouTube
08:49
Can Supplements Replace Thyroid Meds? (What Most People Don't Know) ...
10:12
The BEST Thyroid Supplements for Easier Weight Loss - YouTube
11:46
The 6 BEST Supplements for Hashimoto's (These WORK) - YouTube
Paloma Health
palomahealth.com › learn › supplements-avoid-hashimotos-hypothyroidism
Supplements to Avoid If You Have Hashimoto’s or Hypothyroidism | Paloma Health
September 16, 2025 - For most people with Hashimoto’s or hypothyroidism, it’s best to avoid concentrated iodine supplements unless you’ve been tested, have a demonstrated iodine deficiency, and your healthcare provider has specifically recommended iodine ...
Baylor Scott & White Health
bswhealth.com › blog › 16-things-that-can-mess-with-your-thyroid-health-and-medication
16 things that can mess with your thyroid health and medication
Thyroid support or thyroid health supplements are often dangerous because they contain animal thyroid hormones. According to the Mayo Clinic in 2011, 9 out of 10 thyroid support supplements were found to have risky amounts of animal thyroid hormones. High dose flavonoid supplements ...
The London Clinic of Nutrition
londonclinicofnutrition.co.uk › nutrition-articles › what-vitamins-should-not-be-taken-with-thyroid-medication
Vitamins to be taken away from thyroid medication -
May 7, 2025 - CoQ10 is a vitamin like substance and has a crucial role in energy production within our cells. It has been shown to be highly effective in treating mitochondrial dysfunction, a commonly found problem in hypothyroidism. CoQ10 is generally a safe supplement but it needs to be taken away from your medication.
Cleveland Clinic
health.clevelandclinic.org › thyroid-issues-what-you-need-to-know-about-diet-and-supplements
Foods To Avoid if You Have Thyroid Issues
August 23, 2024 - Iodine supplements should be avoided by anyone living with a thyroid condition. Iodine deficiency is rare in the U.S. and other parts of the world where foods are frequently fortified with iodine.
Mayo Clinic
mayoclinic.org › diseases-conditions › hypothyroidism › expert-answers › hypothyroidism-diet › faq-20058554
Hypothyroidism diet: Can certain foods increase thyroid function? - Mayo Clinic
August 18, 2023 - There's no evidence that eating or avoiding certain foods will help the thyroid work better in people with underactive thyroid.
PubMed Central
pmc.ncbi.nlm.nih.gov › articles › PMC8002057
Levothyroxine Interactions with Food and Dietary Supplements–A Systematic Review - PMC
The effects occurred solely for calcium supplements administered within 2 h after l-T4. Interaction with calcium can be avoided by switching from l-T4 in tablets to oral liquid form. Benvenga et al. [87] studied 12 hypothyroid patients on daily 1000 mg of calcium.
MedlinePlus
medlineplus.gov › home › health topics
Hypothyroidism | Hashimoto's Disease | MedlinePlus
If you take your medicine according ... the hypothyroidism. You should never stop taking your medicine without talking with your health care provider first. If you have Hashimoto's disease or other types of autoimmune thyroid disorders, you may be sensitive to harmful side effects from iodine. Talk to your health care provider about which foods, supplements, and medicines you need to avoid...
Thyroid UK -
thyroiduk.org › home › food and drug interactions
Food and Drug Interactions - Thyroid UK
March 20, 2025 - Diphenylhydantoin may interfere with thyroxine binding to proteins and thereby reduce T4 levels · Valproic acid – causes an increase in TSH levels in children (subclinical hypothyroidism)
Health.com
health.com › food › the-best-and-worst-foods-for-your-thyroid
Dealing With Thyroid Disease? Here's What To Eat and Avoid
October 22, 2025 - Too much iodine can harm your thyroid, which can trigger or worsen hypothyroidism (an underactive thyroid). To benefit without overdoing it, Cynthia Sass, MPH, RD, said to stick to one fresh seaweed salad a week (plus sushi). Avoid seaweed teas and supplements.
Verywell Health
verywellhealth.com › thyroid-disease-dietary-supplements-3231589
Guide to Dietary Supplements and Thyroid Disease
October 7, 2025 - Be sure to talk to a healthcare provider about taking a vitamin D supplement, as an excess can lead to side effects such as painful kidney stones. Vitamin B12 deficiency is relatively common, especially in people over age 50.
American Thyroid Association
thyroid.org › home › low iodine diet
Low Iodine Diet | American Thyroid Association
September 28, 2024 - WHILE ON A LOW IODINE DIET, YOU SHOULD AVOID (NOT EAT): Foods containing iodized salt, sea salt, iodates, iodides, or algin · Vitamins or supplements that contain iodine (especially kelp and dulse)
GoodRx
goodrx.com › goodrx health › health conditions › hypothyroidism: symptoms, causes, and treatments › hypothyroidism diet: foods to eat and avoid with hypothyroidism
Hypothyroidism Diet: Foods to Eat and Avoid With Hypothyroidism - GoodRx
May 5, 2025 - The exception is if your hypothyroidism is caused by a nutritional deficiency, like iodine deficiency. If the deficiency is caught early and symptoms are mild, you may be able to · reverse hypothyroidism by supplementing with iodine or other associated nutrients.
ConsumerLab.com
consumerlab.com › cl answers › i take levothyroxine (synthroid), a thyroid hormone to treat hypothyroidism. are there supplements or foods i should avoid, or be taking, due to this drug?
Levothyroxine (Synthroid) Supplement Interactions -- Supplements To Avoid While Taking Thyroid Hormones - ConsumerLab.com
June 2, 2025 - Medically reviewed and edited by Tod Cooperman, M.D. ... Levothyroxine (Synthroid, Levoxyl), liothyronine (Cytomel), and other thyroid hormone drugs for hypothyroidism (underactive thyroid), can be affected by taking supplements and can affect ...
HealthCentral
healthcentral.com › condition › hypothyroidism › what-best-diet-hypothyroidism
What is the Best Hypothyroidism Diet?
October 12, 2022 - Iodine is essential for a functioning thyroid and the production of the hormone thyroxine. Iodine supplements are unnecessary for anyone with hypothyroidism taking levothyroxine, a synthetic version of thyroxine.
Northwestern Medicine
nm.org › healthbeat › healthy-tips › nutrition › myths-about-diet-and-thyroid
Myths About Diet and Your Thyroid | Northwestern Medicine
You do not need to supplement iodine if you live in the United States or other first world countries where iodine is added to many foods, including table salt. While iodine deficiency is one cause of hypothyroidism, if you are not iodine-deficient, there is no need to take iodine supplements, commonly seen as kelp supplements.
Everyday Health
everydayhealth.com › health conditions › thyroid disease › hypothyroidism
8 Hypothyroidism Medication Mistakes to Avoid
November 19, 2023 - Specifically, antacids, calcium, cholesterol-lowering drugs, iron supplements, and some multivitamins (including most prenatal vitamins) can interfere with the way the thyroid hormone is absorbed.