Mayo Clinic
mayoclinic.org › drugs-supplements › thyroid-oral-route › description › drg-20069086
Thyroid (oral route) - Side effects & dosage - Mayo Clinic
November 1, 2025 - This will allow your doctor to see if the medicine is working properly and to decide if you should continue to take it. Blood tests will be needed to check for unwanted effects. Thyroid should not be used for the treatment of obesity or for the purpose of losing weight.
Consumer Reports
consumerreports.org › health › vitamins & supplements › 5 reasons you should never take thyroid supplements
5 Reasons You Should Never Take Thyroid Supplements - Consumer Reports
Conversely, studies also show that too much iodine (more than around 400 mcg per day) can cause the thyroid to slow down or even stop producing hormones in certain people—the opposite effect of what many people hope these supplements will do for them.
Thyroid booster?
IODINE+SELENIUM+ZINC+TYROSINE More on reddit.com
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January 5, 2022Common Questions: What Supplements Do You Use?
D3, Selenium, Zinc, Vitamin C, B complex, Omegas, Probiotics, Magnesium at night But the best for our health is a good diet and exercise, I started feeling better when my muscle mass increased. More on reddit.com
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February 28, 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, 2024Thyroid support for women - what supplements actually work?
Thanks for posting in r/Biohackers ! This post is automatically generated for all posts. Remember to upvote this post if you think it is relevant and suitable content for this sub and to downvote if it is not. Only report posts if they violate community guidelines - Let's democratize our moderation. If a post or comment was valuable to you then please reply with !thanks show them your support! If you would like to get involved in project groups and upcoming opportunities, fill out our onboarding form here: https://uo5nnx2m4l0.typeform.com/to/cA1KinKJ Let's democratize our moderation. You can join our forums here: https://biohacking.forum/invites/1wQPgxwHkw , our Mastodon server here: https://science.social and our Discord server here: https://discord.gg/BHsTzUSb3S ~ Josh Universe 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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August 1, 2025Videos
10:12
The BEST Thyroid Supplements for Easier Weight Loss - YouTube
11:46
The 6 BEST Supplements for Hashimoto's (These WORK) - YouTube
02:03
"What are the best supplements for thyroid health and insulin ...
08:49
Can Supplements Replace Thyroid Meds? (What Most People Don't Know) ...
09:06
5 DAILY Supplements For Better Thyroid Health - YouTube
00:42
Watch Watch This First! - Thyroid Support Complex Review! on Amazon ...
Cleveland Clinic
my.clevelandclinic.org › health › drugs › 18645-thyroid-capsules-or-tablets
Thyroid Capsules or Tablets
August 4, 2025 - Give your health care provider ... dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine. Do not switch brands of this medication unless your care team agrees with the change. Ask questions if you are uncertain. You will need regular exams and occasional blood tests to check the response to treatment. If you are receiving this medication for an underactive thyroid, it may be ...
American Thyroid Association
thyroid.org › home › patients portal › clinical thyroidology for the public › vol 6 issue 10 › vol 6 issue 10 p.3
“Thyroid support” supplements contain significant amounts of thyroid hormone
October 8, 2013 - As noted above, most of these claims are unproven and are not medically indicated. Prior studies have shown that some dietary supplements included thyroid hormones which could potentially cause symptoms of hyperthyroidism with their use. The present study examined the thyroid hormone content in some of the “thyroid support” supplements.
Drsayandasgupta
drsayandasgupta.com › home › list of thyroid supplements side effects-
Thyroid supplements and It's side effects | Dr Sayandev Dasgupta
April 14, 2023 - Yes, that’s true that there is ... some side effects also. According to a research, the majority of these claims are unfounded, and some of the products may contain substances that could be hazardous to persons with thyroid issues. Taking more nutrients may increase the chance of thyroid problems and other disease So as per Dr Sayandev Dasgupta, using any nutritional supplements, a person ...
NHS
nhs.uk › medicines › levothyroxine
Levothyroxine: a medicine for an underactive thyroid (hypothyroidism) - NHS
Once you are on the right dose of levothyroxine, side effects should go away. Talk to your doctor or pharmacist if you have switched to a different brand of levothyroxine and start to get: symptoms of an underactive thyroid including feeling tired, weight gain or feeling depressed
Healthline
healthline.com › nutrition › thyroid-vitamins
Supplements and Thyroid Health: What to Know
December 23, 2020 - Due to the prevalence of thyroid conditions, many supplement companies have started making supplements that are designed to “support thyroid health.” · Although some of these products are harmless, certain thyroid supplements may lead to negative side effects and can even harm your thyroid.
Mayo Clinic
mayoclinic.org › diseases-conditions › hypothyroidism › expert-answers › hypothyroidism-iodine › faq-20057929
Hypothyroidism: Should I take iodine supplements? - Mayo Clinic
July 9, 2024 - Although iodine deficiency can cause hypothyroidism, this deficiency is rare in the United States.
Houstonendocrine
houstonendocrine.com › what-is-endocrinology › hypothyroidism › treatment-of-hypothyroidism › thyroid-supplements
Houston Thyroid & Endocrine Specialists - Thyroid Supplement Dangers
Unfortunately, the ingredient can elevate heart rates, cause arrhythmia, induce nervousness, and create diarrhea, said senior investigator Victor Bernet, MD, who presented the findings October 27, 2011, at the American Thyroid Association annual ...
Restart Med
restartmed.com › thyroid-supplement-side-effects
Thyroid Supplement Side Effects: What to Expect
December 20, 2025 - Do thyroid supplements come with side effects? Yes, but there are ways to minimize negative side effects while optimizing the positive ones.
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?
Verywell Health
verywellhealth.com › thyroid-disease-dietary-supplements-3231589
Taking Dietary Supplements When You Have Thyroid Disease
October 7, 2025 - In addition to prevention, a 2018 study found that vitamin D supplements improved TSH (thyroid stimulating hormone) levels in people with hypothyroidism. Many people in the United States have low levels of vitamin D. Fortunately, a simple blood test can help you know whether you are deficient or not. 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.
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
However, taking an iodine supplement (without your doctor’s recommendation) can impact your thyroid negatively. Do not start an iodine supplement without discussing with your doctor first. ... Thyroid support or thyroid health supplements are often dangerous because they contain animal thyroid hormones.
Rupa Health
rupahealth.com › post › a-comprehensive-guide-to-thyroid-supporting-supplements
A Comprehensive Guide to Thyroid Supporting Supplements
February 10, 2025 - There were no side effects reported during the study; however, other research has shown ginger can lead to heartburn, diarrhea, throat and mouth irritation, and abdominal pain, and thus patients should be made aware of these side effects prior to supplementing. ... Nigella sativa, commonly known as black seed, may be effective in supporting thyroid health in individuals with Hashimoto’s thyroiditis.
Personalabs
personalabs.com › home › thyroid health supplements: understanding their true impact
Thyroid Health Supplements: Understanding Their True Impact | Personalabs
March 13, 2025 - Some thyroid support supplements can cause gastrointestinal issues, including nausea, diarrhea, or abdominal discomfort. Allergic reactions, such as skin rashes or hives, are possible also with certain supplement ingredients.
WebMD
webmd.com › drugs & medications › desiccated thyroid (armour thyroid, np thyroid, and others)
Desiccated Thyroid (Armour Thyroid, NP Thyroid, and others)
Older people may be at greater risk for some side effects from desiccated thyroid. Talk to your health care provider about your risks if you are 65 or older. You may notice hair loss while taking desiccated thyroid, especially when you first start taking it. This is rare and the hair loss is usually temporary. Tell your health care provider about all of your health conditions and any prescription or over-the-counter (OTC) medicines, vitamins/minerals, herbal products, and other supplements ...
Everyday Health
everydayhealth.com › health conditions › thyroid disease › hypothyroidism
Treating Hypothyroidism: Can Vitamins and Supplements Help?
October 25, 2023 - It’s important to speak with your physicians before consuming any iodine supplements due to the adverse effects it can have on hypothyroidism. A research review found that excessive levels of iodine are unsafe and could result in hypothyroidism and autoimmune thyroiditis, such as Hashimoto’s thyroiditis.