Best Thyroid Supplements of 2018

vector illustration of thyroid gland anatomy

The thyroid gland is responsible for regulating your metabolism, heartbeat, energy levels, muscle strength, appetite, health of your heart, brain, kidneys, and many other important bodily functions. If something is erroneous with the thyroid, a person will likely experience a lot of unpleasant symptoms, the most common of which is weight gain. Millions of people suffer from hypothyroidism in America alone. Due primarily to diet and genetic issues, the thyroid gland is not able to produce enough thyroid hormones. Thyroid issues often go undiagnosed since so many of the symptoms from low thyroid hormone can be mistaken for symptoms of other problems. This is where thyroid supplements come in.

Whether you have fatigue, weight gain, or full fledged hypothyroidism, it is likely you will need a thyroid supplement to help boost your natural thyroid hormone production. But which product is the best thyroid supplement? I remember about four years ago, I purchased a ‘thyroid support and weight loss’ supplement for $80 that was supposed to really help me. Instead of looking up reviews like a knowledgeable, independent consumer, I instead fell for a good marketed product that failed to deliver on its many promises. Hopefully, through this website and our reviews, you will be able to find the best thyroid supplement for your needs.

The most important aspect in determining the best thyroid supplement are the ingredients within the bottle and its quality. Although some manufacturers may have similar formulas, their thyroid supplements can have very different effects on the same person. This is due to the quality of the ingredients within the bottles. In many cases, the quality of the ingredients and where they are sourced from, can have bigger effects than the ingredients themselves. A manufacturer can talk and write about how the iodine within its supplement is the best, but ultimately 1mg of high quality iodine extracted from underwater kelp can have more of an effect than 10mg of one that is synthetically produced. Be sure to check out the list below to make sure you find a supplement that works best for your needs.

Highest Ranked Thyroid Supplements

  • Our Score
  • Supplement Facts
  • Vitamin B-12
  • Iodine
  • Magnesium
  • Saraparilla Root
  • Zinc
  • Selenium
  • Copper
  • Manganese
  • Molybenum
  • Ginseng
  • L-Tyrosine
  • Schizandra
  • Ashwagandha Root
  • Bladderwrack
  • High Potency Extracts
  • Cayenne Pepper
  • Kelp
  1. Reply
    Lynda July 19, 2017 at 4:48 pm

    Thanks! This is very helpful in learning what each thyroid supplement has inside it. I do have a question regarding thyroid supplements in general. I have seen some articles that are advising people to avoid them for a variety of reasons. What do you think?

    • Reply
      Thyroid Advisor July 19, 2017 at 6:15 pm

      Hi Lynda,

      With most comments, I’ll end up replying in a couple sentences, but because this a question that I’m sure a lot of others have as well, I’m going to take some liberty here and write a decent amount about my thoughts on this topic.

      Almost all of the thyroid supplements we review on this site is relatively safe.

      They contain nutrients, herbs, minerals, and vitamins that you can find in regular diets and certain food. They just conveniently and accurately place them into capsules so that you can make sure your thyroid is getting all the support it needs to function in a healthy manner.

      However, there are thyroid supplements that some experts consider to be unsafe.

      These are most commonly supplements that contain crushed, raw thyroid extracts from bovine (cattle). The idea with these thyroid supplements is that the thyroid glands from animals contain some amount of T3 and T4 thyroid hormones. Thus, by ingesting these supplements, you are in turn taking thyroid hormones that can boost an under active thyroid.

      Please note that this is a very valid method of treating an under active thyroid.

      Some of the relatively popular thyroid medications on the market, such as Armour Thyroid, Nature-Throid, Westhroid, all work this way. They all contain naturally desiccated thyroid glands and many patients say that it works great for them. For some patients, it works a lot better when compared to other thyroid medications such as Synthroid/Levothyroxine.

      The controversy that arises here is the difference in regulation between supplements and prescription drugs.

      If you take a thyroid supplement that contains – lets say – 150mg of Bovine Thyroid Tissue, what does that actually tell you? You don’t know the exact amount of T3 and/or T4 hormones in each capsule. It is possible that one capsule contains very little T3 and T4, while another contains a lot of both, or somewhere in the middle, or a lot of one and none of the second, etc. Hopefully you get the idea of what I’m trying to point out.

      With prescription medications, it’s an entirely different story. Armour Thyroid, for example, contains liothyronine (T3) and levothyroxine (T4) hormones in about a quarter ratio.

      If the dosage is 60-65 mg of thyroid extracted and crushed from porcine (pig), then it contains 9 mcg of T3 and 38 mcg of T4. In essence, you can be sure of how much thyroid hormone you are consistently putting into your body.

      So I do think it is important to be weary of those thyroid supplements that contain actual thyroid hormones. It’s seems like a better idea to get those medications through doctors. But again, the thyroid supplements seen in this website, I do believe, should be taken to support healthy thyroid functionality.

      Hopefully this helps!

  2. Reply
    Abby July 19, 2017 at 6:31 pm

    What ingredient do you consider to be the most important or essential I guess in a thyroid supplement?

    • Reply
      Thyroid Advisor July 20, 2017 at 4:45 pm

      Hi Abby,

      I hate to take the cop out answer and say it depends on the person – but honestly, it does.

      The most important mineral, herb, vitamin, or nutrient in these thyroid supplements will be the one(s) that your body is lacking or is not getting enough of through your diet. Getting blood tests done can help figure out which nutrients you are lacking as well as figure out the values of TSH, T3, T4, etc. in your body.

      If you’re asking which vitamins and/or minerals were most lacking in individuals with thyroid disorders, I would have to say Iodine and Zinc, in that order. I would look for a thyroid support supplement that contains both of these.

      • Reply
        Ash July 23, 2017 at 3:37 am

        Followup to Abby’s question. Are there any ingredients we should avoid? Especially in a thyroid supplement?

        • Thyroid Advisor July 25, 2017 at 2:38 am

          Hi Ash,

          I would avoid calcium and soy. Calcium is especially bad if you are currently on thyroid medications, such as synthroid, as it can interfere with hormone absorption. See for more details and information about this.

          As for soy, it is a sort of controversial topic whether hypothyroidism patients should avoid it. Some experts believe they should, and others do not think it has much effects. Perhaps it’s better to stay on the safe side.

  3. Reply
    Savannah July 20, 2017 at 7:14 pm

    I have been feeling a bit tired for the past couple of months. My doctor decided to do a thyroid blood panel test on me. The values came back within “normal” range, but they were on the lower side of that. I am considering buying one of these thyroid supplements and trying it out.

    • Reply
      Thyroid Advisor July 21, 2017 at 12:31 am

      Hi Savannah,

      Yeah, many doctors are hesitant to prescribe thyroid medications when patients return values in the “normal” range. The only options are finding another doctor or taking thyroid supplements.

      I think it could definitely help people in similar circumstances as yourself. I would be surprised if it doesn’t help in some fashion.

  4. Reply
    Grace July 20, 2017 at 7:18 pm

    Is there any special method of taking these thyroid supplements?

    • Reply
      Thyroid Advisor July 21, 2017 at 12:37 am

      Hi Grace,

      Not really. They’re just like other supplements. Most of them recommend taking the capsules with meals, preferably breakfast.

      The most important aspect is to just be consistent. Take them around the same time everyday.

  5. Reply
    Elizabeth July 20, 2017 at 10:51 pm

    Thanks for putting this list together! It is helpful.

    I am thinking about purchasing one. I am wondering how long does it take before noticing benefits. Whether in supplements like these or prescription thyroid medications such as synthroid?

    • Reply
      Thyroid Advisor July 21, 2017 at 1:17 am

      Hi Elizabeth,

      With the better thyroid supplements out there, you should feel improvements and benefits by the second or third week at the latest. Most people say it is much sooner, though. It does depend on the person and the type of thyroid supplement that is being taken.

      For the lower ranked supplements, I suspect it would take a lot longer – if ever – for you to exhibit betterment.

  6. Reply
    Arianna July 21, 2017 at 5:24 pm

    i see that there are similar ingredients between multiple supplements. what is the difference between the ones that have the same?

    • Reply
      Thyroid Advisor July 21, 2017 at 11:09 pm

      Hi Arianna,

      I believe I wrote a bit about this before – either that or I’m getting some deja vu. The formula is just one part of the puzzle and often times, what happens is that there will be a great formula but the extracts and source of the ingredients will not be the best kind of quality we want to be putting into our bodies. This is often the case with supplements – even those not in the thyroid health area – where some will have very similar formulas but will work a lot differently for similar people.

  7. Reply
    Saraah July 21, 2017 at 5:33 pm

    Could you add some indicator if the supplement does not contain gmos or gluten. I know that would help me out because I am sensitive to those.

    • Reply
      Thyroid Advisor July 21, 2017 at 10:25 pm

      Hmmm… I’ll look into it. However, that could take some time.

      It is definitely a good idea. Gluten and GMOs are known causes of hypothyroidism for some, so we would want to avoid those in our diet and supplements.

  8. Reply
    David July 21, 2017 at 6:36 pm

    What sort of side effects are common in these thyroid supplements?

    • Reply
      Thyroid Advisor July 21, 2017 at 11:23 pm

      Hi David,

      I have not seen many – if at all any – side effects with the higher ranked supplements. With some of the lower ones, I’ve seen some reports of anxiety, head aches, muscle aches, etc. Always stop taking a supplement if you experience these or other unwanted side effects.

  9. Reply
    Gab July 21, 2017 at 6:45 pm

    I did a blood test and the results are:

    TSH: 4.55 mIU/L
    T3: 103 ng/dl
    T4: 5 ug/dl

    Could something like these help me? I am starting to look after my diet more.

    • Reply
      Thyroid Advisor July 21, 2017 at 10:34 pm

      Hi Gab,

      TSH is definitely high here, and T3 and T4 are lower than ideal. Depending on who your doctor is, they might put you on a low dosage of thyroid medication.

      As for your question – yes, I do think these supplements could help you as well. I’d recommend trying one of the higher rated ones on this website. Be sure to find one with a money back guarantee as well so you will not have anything to lose.

      I would be interested to know what your blood tests (extended as well) and levels some time after taking some supplements (if you choose to.)

  10. Reply
    Mary July 21, 2017 at 6:57 pm

    Do you know if these are available in stores? I do not really like buying things over the internet.

    • Reply
      Thyroid Advisor July 21, 2017 at 10:45 pm

      Hi Mary,

      Some of the more popular thyroid supplements created by large companies (Gaia Herbs comes to mind) should be available in supplement stores such as Vitamin Shoppe or supermarkets such as Walmart. No one that I know of, has had trouble ordering them over the internet though, but it’s up to you.

  11. Reply
    Kellyanne July 21, 2017 at 8:15 pm

    I’m currently on synthroid right now but i don’t think its doing enough for me personally. I still dont really feel energetic or motivated. would adding a supplement to my medication help?

    • Reply
      Thyroid Advisor July 21, 2017 at 10:59 pm

      Hi Kellyanne,

      It’s always a good idea to check with your doctor before adding supplements to existing thyroid medications due to potential interference of hormone absorption.

      With that being said, it is not uncommon for patients, especially those with a low dose, to add a thyroid supplement to their regimen. If you do choose to take a thyroid supplement, be sure to take the supplement at least 3 hours after taking your synthroid to lower the potential for interference.

  12. Reply
    Ruth July 23, 2017 at 7:34 pm

    I took some thyroid supplements a couple years ago, but it did not do much for me. I did not feel much different. Are these different and do you think they can really help?

    • Reply
      Thyroid Advisor July 25, 2017 at 2:41 am

      Hi Ruth,

      I do think these thyroid supplements can help support your thyroid gland and its functionality. I would not recommend them otherwise.

      If you remember the thyroid supplement you took, I can maybe provide more information about why it was potentially ineffective. What likely happened, was that the marketing or hype of a brand did more than what was actually inside the bottle.

  13. Reply
    gem July 27, 2017 at 12:09 am

    I am wondering if you need to have a thyroid condition in order to take these supplements. I believe I have the symptoms of a slow thyroid, but have not been able to verify it with my doctor yet as my yearly appointment is not up yet…. Is it still possible to take these and get the benefits?

    • Reply
      Thyroid Advisor July 30, 2017 at 5:53 pm

      Hi Gem,

      Usually, people who have confirmed in some way, usually through lab tests or consistent symptoms associated with hypothyroidism, decide to take thyroid supplements. In either case, you will still get the benefits of these thyroid supplements, if you decide to take them. It’s actually possible that you restore your thyroid by the time your appointment comes up (if its not for a couple months.) Your doctor can verify this at that time, or advise you on other options.

  14. Reply
    Donna July 27, 2017 at 1:16 am

    I am currently taking a low dosage of synthroid due to my doctor’s diagnosis of subclinical hypothyroidism. I do not like some of the side effects, however. I am considering taking thyroid supplements as an addition or perhaps to eventually replace synthroid. What differences can I expect?

    • Reply
      Thyroid Advisor July 30, 2017 at 6:09 pm

      Hi Donna,

      Many patients do take synthroid along with thyroid supplements, like those on this page. A lot of them report feeling a lot better and energized with both. I haven’t heard of anyone feeling worse. It’s a good idea to consult with your doctor first, though.

      As for whether it can replace synthroid… I would usually say no – but if you’re on a very low dosage of synthroid, it might be possible. Obviously, every case is different, and for a lot of people, they will likely have to take synthroid for the rest of their lives. But it is also possible you are a perfect fit for thyroid supplements and end up rebalancing your thyroid.

  15. Reply
    Marja July 27, 2017 at 1:18 am

    i ve read your article on which thyroid supplements to avoid. but it did not seem very complete. are there other things in these thyroid supplements i should be wary off ?

    • Reply
      Thyroid Advisor July 30, 2017 at 6:32 pm

      Hi Marja,

      That article covered the main idea of what to avoid in some thyroid supplements: which was basically raw glandular extracts. Glandular extracts are a very useful treatment option (see our article on Armour Thyroid) but the unregulated nature of supplements often results in large fluctuations of hormones in each capsule compared to another one. Drugs like Armour Thyroid or Nature Thyroid produced in pharmaceutical labs are much better alternatives if you’re absolutely set on taking a pill with thyroid extracts from other animals.

      But, glandular extracts is definitely not the only thing to avoid in thyroid supplements. Calcium is another ingredient I would stay clear off – especially if you take synthroid or another form of levothyroxine. See this study on how calcium can reduce T4 absorption.

  16. Reply
    Mia July 27, 2017 at 2:57 am

    Are there any thyroid supplements that contain Vitamin A? I have read that this is needed by the thyroid as well, but do not see any on this list.

    • Reply
      Thyroid Advisor July 30, 2017 at 7:02 pm

      Hi Mia,

      You’re right that Vitamin A is needed by the thyroid gland to produce and synthesize hormones. It’s rare though we see them in thyroid supplements primarily because Vitamin A deficiency is super uncommon in the United States.

      It’s a lot more prevalent in third world countries. Diet in America, even though it’s not great, does cover Vitamin A well.

      But if you’re still worried about your Vitamin A intake, you can take another supplement that covers it specifically in addition to thyroid supplements if you take them.

  17. Reply
    Tila July 28, 2017 at 2:09 am

    Great info! I have not tried Ashwagandha yet, but plan to do so after reading about it on your website and then seeing these supplements with it. Are their other herbs you recommend taking? I feel like they help me a lot more than other things.

    • Reply
      Thyroid Advisor July 30, 2017 at 7:33 pm

      Hi Tila,

      Definitely do try Ashwagandha. It’s a great herb that can help with thyroid disorders. Here’s an article that covers other herbs for thyroid health.

  18. Reply
    Jenna July 28, 2017 at 5:35 am

    My doctor recommended getting a supplement because some of my vitamin levels were low after doing a blood test. She said be sure to find one that is made with “good manufacturing processes.” Do you know about this and which ones fit her meaning?

    • Reply
      Thyroid Advisor July 30, 2017 at 7:40 pm

      Hi Jenna,

      I believe what you or your doctor are referring to is: Current Good Manufacturing Practices or CGMP for short. Basically its a means of ensuring that the supplement meets a certain quality standard. All supplements made in the United States has to meet this bar according to the law. So, as long as the supplement is made in the USA, it should be good. Some manufacturers go above and beyond this standard as well.

      The quality is usually seen in the product.

  19. Reply
    Kendall July 29, 2017 at 3:14 am

    This may seem like a dumb question, but I’m kinda new to this and want to improve my thyroid since I’ve been feeling pretty tired lately….. can you pair up like two or three thyroid supplements and get like twice the benefits? That would be nice so I can get better results in like half the time !!! No dumb questions, right !?! =]

    • Reply
      Thyroid Advisor July 30, 2017 at 7:55 pm

      Hi Kendall,

      Haha, you’re right there’s no dumb questions. I’m sure someone else had a similar inquiry, but didn’t want to take the time to write a comment!

      Unfortunately, it does not work that way. If you take one of these thyroid supplements – especially ones on the higher end of the ranking – you’re already covering a decent amount of your bases in terms of nutrients, vitamins, minerals, and herbs.

      Taking another one won’t amplify the benefits – unless it contains an ingredient that the first one didn’t. You do occasionally see two or three different types of thyroid supplements from the same store or website. But that’s usually because the company behind it wants you to buy the “pack” of them at the same time so you end up spending more money.

  20. Reply
    Kathryn A Hudson August 1, 2017 at 1:42 am

    I am 74 years old and fall into a time when it was typical for a GP to Rx Thyroid medication for weight loss. Unfortunately I was only 10 or so pounds overweight and wanting to be a “Stewardess”as they were called back then. Well it didn’t work and nursing school was next. Soon learning that I was committed to taking it the rest of my life, and being a medical independent (not going to the doctor for simple advice) I managed my own dosages based on the way I happened to be feeling. So wrong, I know! What I did NOT know until 5 years ago was the importance of taking the medication on an empty stomach! Then, a short time ago read in some research material that green vegetables, flouride, chlorine, are just a few things that inhibit the natural production of this hormone. In moderation, any one of these wouldn’t matter, but I brush my teeth 4-5 times daily, swim for hours every week, not to mention I drink tap water, and every few days I cook up a mess of Kale, Collards, Spinach and eat a lot of them. All of these years my dosage never decreases, just goes UP, yet I am still the same old overweight, fatigued bag of bones! Oops, 6 months ago it struck me that empty stomach didn’t just mean food. I took all my pills and supplements at the same time each am. After years of mistakes in compliance and re-testing time and again, I believe I’m the best it’s going to be. Now, I’m well aware that you are completely appalled at what I’m telling you, but MANY people read reviews and I wish I had been informed 68 years ago. Hopefully, this may help someone else. I DO have a question, though. In the constant effort to be healthier, I made the switch from iodized salt to sea salts. Would this impact a healthy diet? (I do have an affinity for Nori which is a staple of Japan made out of seaweed. Our bodies crave what we are lacking-IMO?) I haven’t stopped brushing my teeth, have switched to salt water pools and cut way back on the leafy greens . Looking forward to your answer! Respectfully, Kathryn

    • Reply
      Thyroid Advisor August 1, 2017 at 4:34 am

      Hi Kathryn,

      Thanks for sharing your experience! Certainly a lot of information here, so let me try to address some of them.

      I managed my own dosages based on the way I happened to be feeling. So wrong, I know!

      Yeah, not the best idea, as you figured out later on! Thyroid medications (I assume you were on levothyroxine) take about 4-6 weeks to even begin to fully work within our bodies. So even if you were feeling worse or more tired one day, and decided to take an extra dosage, you wouldn’t feel the effects until much later. The fluctuations in dosages was also a likely factor in the energy, metabolism, etc. swings as time went on.

      What I did NOT know until 5 years ago was the importance of taking the medication on an empty stomach!

      This is basic information to anyone taking synthroid, but I guess since you were medically independent you didn’t have a doctor to tell you about this. A lot of foods can interfere with the absorption of levothyroxine – calcium, iron, even coffee (see our article on levothyroxine for more information – so a lot of patients end up taking it first thing in the morning when they wake up to avoid any potential issues. It seems that you found out about this information a lot later!

      Now, I’m well aware that you are completely appalled at what I’m telling you, but MANY people read reviews and I wish I had been informed 68 years ago.

      Hahaha, you’re kind of right. I guess for someone who lives and breathes thyroid information, my mindset is a bit different from most patients. It’s always great to see people’s experiences like this, because it reminds you that information you may consider basic, may be something that another patient has never heard of before. I’m sure a lot of patients were or even are in the same boat as you. I’m sure some of them will be able to see your post and experiences and benefit from it. Thanks for that. Onto your questions!

      In the constant effort to be healthier, I made the switch from iodized salt to sea salts. Would this impact a healthy diet? (I do have an affinity for Nori which is a staple of Japan made out of seaweed. Our bodies crave what we are lacking-IMO?) I haven’t stopped brushing my teeth, have switched to salt water pools and cut way back on the leafy greens .

      If you’re worried about getting fluoride while brushing your teeth, you can switch to a fluoride-free toothpaste. I’ve heard good things about Tom’s of Maine. Obviously don’t stop brushing your teeth!

      You don’t have to avoid all leafy greens – just cruciferous vegetables. See this link on which foods to avoid for the thyroid.

      If you switched from Iodized salt to sea salts, specifically Nori, it’s unlikely it will have a impact on your diet. Iodine is an important mineral for your thyroid, so you definitely need to get it in diet. Since Nori is made from seaweeds, which are rich in Iodine, it shouldn’t be much of a difference compared to Iodized salt.

  21. Reply
    Terry August 1, 2017 at 11:51 am


    I have read all of the comments and love how dedicated you are to helping others with thyroid issues. I been taking 75mcg of Levothyroxine for the past year, not like I felt great on it anyhow, but unfortunately circumstances have it that I’m between doctors and will not be able to get a new one for a couple of months. I am looking for the best fit for supplement and any other supplements you would recommend for someone in this predicament?

    • Reply
      Thyroid Advisor August 1, 2017 at 7:03 pm

      Hi Terry,

      If you have some recent lab test results, perhaps it could shed some more light on your condition. 75 mcg of Levothyroxine is a relatively low dosage to begin with, so perhaps it might be something to talk about with your doctor the next time you see him/her. They might have a reason, though, to start you on that.

      Generally, thyroid supplements can be combined with levothyroxine, and they can provide some benefits to the user. How much depends though, on the person, his current state, and the supplement type itself. The top ranked ones we have on this page would probably be better for you. It could be helpful too to check with your doctor if you have a chance.

      • Reply
        Terry August 4, 2017 at 1:28 am

        Thank you! I am in between doctors and just received the ThyroMate in the mail today. What I found interesting was that it is made with Soy. I thought soy wasn’t good for people with a thyroid condition?

        • Thyroid Advisor August 5, 2017 at 6:39 pm

          Hi Terry,

          Right now, soy is a bit of a controversial topic on whether hypothyroidism patients should avoid it. There is not really a consensus. Some experts believe soy interferes with thyroid hormone synthesis and absorption so people should avoid it, but others do not think it has any effect. While more studies are ongoing, perhaps it’s better to stay on the safe side for now and avoid it.

          If I remember correctly, because I did ask them about that too, I was told that there is very small amount of soy that is used in the processing of the minerals – about a tenth of a milligram – and very few, if any, soy proteins (which is what some believe may interfere with hormone absorption), that it is considered trace, and should not have any effect on the thyroid. However, due to allergy regulations, they had to include it on the label.

          You can ask them about it too, if you’re concerned.

  22. Reply
    Abigail August 2, 2017 at 11:19 pm

    I am over 50 years old and my recent lab results have indicated that I almost have hypothyroidism according to my doctor. He says I have a slight problem converting T4 to T3 and recommended only diet changes now instead of starting on a drug. I have a followup appintment in the coming weeks. Can these thyroid supplements help and improve my results by then?

    • Reply
      Thyroid Advisor August 3, 2017 at 2:49 am

      Hi Abigail,

      I do think thyroid supplements can help improve your nutrient deficinces and support – in many ways – thyroid hormone production and conversion. We noticed that most of these supplements take about 2 to 3 weeks of consistent usage to really feel the effects of them. It does depend on the individual and the supplements, but I think that is the average that most should expect. If your appointment is in about a month, it definitely has the potential to improve your results. If it’s next week or even two weeks from now (as it will probably take you some amount of days to get a thyroid supplement either online or at a store), then probably not.

  23. Reply
    Alexus August 6, 2017 at 3:37 am

    How big are the pills in thyroid supplements? I am worried that i will not be able to swallow it….. normal sized ones I take now are trouble enough, so if it’s big, I wont be able to take it!

    • Reply
      Thyroid Advisor August 6, 2017 at 8:34 pm

      Hi Alexus,

      I’ve taken quite a few of them. They are not at all big. Most are less than an inch in length and maybe half an inch in width and height? Definitely not something I, or anyone else I have talked to, would consider large by any means. Very easy to swallow in my opinion.

  24. Reply
    Carlie August 8, 2017 at 1:20 am

    I am currently living in London due to business and will not be back to the USA for some time. Do you know if it is possible to get the high ranked thyroid supplements on your list here in England? I heard good things of thyroid supplements from a friend of mine. I want to try them too.

    • Reply
      Thyroid Advisor August 9, 2017 at 2:42 am

      Hi Carlie,

      Unfortunately, I do not know the answer to that. This seems like a question the company you want to purchase the thyroid supplement from can answer or one of your country’s customs office.

      Some of these products are probably available on sites such as Amazon UK, like that can be an option for you as well.

  25. Reply
    Em August 8, 2017 at 6:52 pm

    What is your view on glutathione? I hear good stuff about this, but did not notice it on your list. Also, thoughts on liquid versus capsule delivery of thyroid supplements?

    • Reply
      Thyroid Advisor August 9, 2017 at 3:38 am

      The first question you have is interesting.

      So, glutathione is an amino acid that the liver produces and acts as an antioxidant.

      I won’t go into all the benefits here – the gist is that it’s important. High levels of glutathione have been linked to better health while lower levels are commonly associated with a variety of diseases.

      Unfortunately, you cannot take glutathione through supplements or other forms of pills. I mean you can – but glutathione consumed orally, will be broken down in the gastrointestinal tract and essentially be ineffective.

      However, you can help boost natural production of glutathione through a good, balanced diet that includes l-tyrosine, Vitamin C, and riboflavin to name a few. Most thyroid supplements – at least the good ones – already contain these.

      As for your second question on liquid vs capsules. This is essentially a debate on which supplement form is the best. You have tablets, caplets, capsules, softgels, chewables, powders, and liquids, as you mentioned.

      There seems to be a prevalent idea that liquid supplements are inherently better because they can be absorbed faster, but research studies seem to disagree. Liquid thyroid supplements do have the potential of being absorbed faster, but not that significantly, about 10 – 20 minutes.

      There does not seem to have a difference in terms of nutrition intake either. It also helps sometimes to have the thyroid supplement dissolve over a longer period of time.

      Basically, most liquid thyroid supplements costs a lot more, and often contains fewer vitamins, minerals, and amino acids (due to space restrictions) than common, better thyroid supplements. Some of them taste terrible too!

      I do see an advantage for liquid supplements, however. For those who cannot swallow pills though, it seems like a great alternative. For most others, though, I would go with the regular capsules. Hope that helps!

  26. Reply
    Addison August 9, 2017 at 11:48 pm

    I used to take thyroid supplements almost a decade ago… can’t remember what it was called but remember it said it had the ashwagandha and ginseng herbs…really helped me a lot but ended up getting off of it due to the cost… thinking about starting back on a thyroid supplement… hope it works will let this site know.

    • Reply
      Thyroid Advisor August 10, 2017 at 5:05 pm

      Hi Addison,

      Ashwagandha and ginseng are particularly helpful for thyroid health (see our article here on thyroid herbs). I’m not surprised you felt a lot better. Most people do!

      Hopefully, one of these thyroid supplements will have the same effect as that other supplement you took some time ago. Lets us know!

  27. Reply
    April August 10, 2017 at 10:31 pm

    Do you think people need thyroid supplements? I’m a bit averse to supplements in general. What other natural options are available for people like me?

    • Reply
      Thyroid Advisor August 11, 2017 at 12:11 am

      Hi April,

      Do people NEED thyroid supplements? Probably not. I’m sure they can survive without it, but I do think they help a lot. I’ve heard countless stories of people who feel like they got their lives and a bit of their youth back.

      But there are other options. Our article on boosting thyroid hormones and function naturally may help in this regard. I do think thyroid supplements are perhaps the best option for most, and they shouldn’t be disregarded without trying it, but you should always choose the option that works best for you.

  28. Reply
    Stella August 13, 2017 at 3:22 am

    52 year old women. Developing a goiter on the side of my neck. It’s still really small if anything. Maybe just paranoid. What methods are there to help fix this? Thyroid supplements?

    • Reply
      Thyroid Advisor August 13, 2017 at 11:55 pm

      Hi Stella,

      If the goiter is the result of nutritional deficiencies (commonly goiters are a result of low Iodine or Hashimoto’s), than thyroid supplements will help. It’s important to catch the goiter early though, as it seems that you have (by the way you should get it looked at my a doctor to make sure.)

      There are other natural ways of improving thyroid function. See this link here.

  29. Reply
    Shelby August 16, 2017 at 7:55 pm

    I don’t have a question, but I di want to add that thyroid supplements have helped a lot for me personally. I was used to feeling tired and having low energy all the time, but didn’t know there was much I could actually do about it. After taking thyroid supplements for a couple months now, I feel very different. In a better way !!!

    • Reply
      Thyroid Advisor August 18, 2017 at 2:14 am

      Hi Shelby,

      I’m glad they work for you! I think a lot of people are in the same boat as you were in a couple months ago. Sharing experiences like these can help those who are still in the struggle. Thanks!

  30. Reply
    Jack August 18, 2017 at 10:58 am

    Hi there,
    I’m looking for some a young male who trains at a high level (distance running) recently got a thyroid screen done and my t4 and t3 levels are far too low for optimal training and recovery. I’m looking into taking a low dose of NDT or one of these supplements. Would you be able to offer me your opinion which I should take based on my bloods.
    TSH: 1.9 uIU/ml
    Free T4: 0.8934 ng/ml bottom of range
    Free T3: 1.8 pg/ml bottom of range
    Total T3: 73.563 ng/dl low end of range
    Anti Thyroglobulin anti-bodies: 1.51 IU/ml
    Anti Thyroperoxidase anti-bodies: 0.24 kIU/L

    • Reply
      Thyroid Advisor August 18, 2017 at 4:52 pm

      Hi Jack,

      I’m going to reiterate the main points of the response you received (through email) as it may help others who are in similar situations.

      You’re T3 and T4 levels are less than optimal – especially for an athlete. As for what to do from here. I would take a look at your diet and the kinds of foods you eat. If you’re diet is fairly good and if you take some form of supplements already, thyroid supplements may not be able to help you as much as others.

      NDT could help. It’s something to ask your doctor about, but you might have to go looking for one to prescribe you. In the sense that your tests are not THAT bad (when compared to others who have hypothyroidism), and you’re a young male. If you do take NDT, it will take a couple weeks for it to fully build it in your system.

      For the short term, I would look into B complex supplements and eating more (if you’re not overweight). They should give you the short term energy you need.

      Hope that helps.

  31. Reply
    Sharon August 19, 2017 at 8:54 pm

    My 20 year old son’s thyroid tests came back as follows:
    TSH: 6.29 ml U/L
    T4, Free: .81 ng/dL
    T3 total: 116 ng/dL
    Thyroglobulin AB: <20.0 IU/mL
    Thyroid Peroxidase: <10 IU/mL

    His doctor said his thyroid tests are fine. He has been experiencing extreme fatigue when exerting himself in sports and has to stop, put his hands on his knees and take a breath within a few minutes of any type of exertion. He also has dry skin and very bad dandruff and just does not feel well generally. He gets very cold at times and very hot at other times. I would appreciate your opinion on whether supplements would help him since the doctors won't.

    • Reply
      Thyroid Advisor August 19, 2017 at 11:33 pm

      Hi Sharon,

      I’m surprised the doctor said his thyroid tests are fine. From the looks of it, TSH is pretty high here, and T3 and T4 are on the lower end. It also sounds like he has other signs of a low thyroid as well.

      I do think thyroid supplements can help, and they are worth trying. However, I would also look at getting a second opinion from a doctor. If his symptoms are severe, he may need more than just supplements – actual medication that needs a prescription.

      • Reply
        Sharon August 21, 2017 at 11:32 pm

        Thank you – we will get a second opinion. Appreciate your advice!

  32. Reply
    Ann August 19, 2017 at 9:42 pm

    Found this site through google. Am i missing something here? Why is it important to have those nutrients like zinc or selenium in a thyroid supplement?

    • Reply
      Thyroid Advisor August 20, 2017 at 1:22 am

      Hi Ann,

      The short answer is that these vitamins, minerals, and other nutrients have been shown to properly synthesize and produce thyroid hormones. Your thyroid needs the nutrients and herbs from these thyroid supplements in order to function at its best.

      The long answer (with references to numerous peer reviewed studies) can be found in articles around this website. Check out these articles on Zinc and Selenium to see why they are so important!

  33. Reply
    Christina August 21, 2017 at 4:59 pm

    I am currently taking synthroid and birth control. I have heard that Selenium may interact with birth control. Is there any truth to this?

    • Reply
      Thyroid Advisor August 21, 2017 at 11:44 pm

      Hi Christina,

      I have not heard or read of any interactions between selenium and birth control – in the sense that one does not prevent or interfere with the other from working, being absorbed, or doing it what it’s supposed to do.

      The only relationship I have heard of between the two, is this study that states oral contraceptives induce depletion of key nutrients including selenium. So according to the study, it would actually be better to supplement with selenium if using a birth control.

  34. Reply
    mel August 29, 2017 at 1:28 am

    Hi, My levels were borderline : Free T3 was 2.5 Free T4 was 1.1 and TSH was 4.110…all borderline low. I was feeling a bit tired so my doctor put me on Nature-Throid. All was good and I had more energy, about 3 weeks in, I started noticing amy hair falling out a lot. It’s now 10 weeks since I started, and I am going to stop. My scalp itches, my hair follicles changed texture to being so so soft that it just hangs and the hair loss is still happening. I must be allergic to something in it. I told my doctor and she said for me to stop since I was uncomfortable taking it. I’m hoping that the herbal medicines will keep my thyroid healthy. I’m a bit scared of going off the medication, but I must try to regulate the borderline thyroid with herbal alternatives.

    • Reply
      Thyroid Advisor September 4, 2017 at 10:35 pm

      Hi Mel,

      Yeah, it seems that Nature-Throid does not work well with your body. Hopefully herbal supplements for the thyroid can work to improve your energy without the side effects you experienced.

  35. Reply
    Tiffany September 1, 2017 at 11:44 pm

    I’ve been taking 100mcg of levothyroxine an I feel even worse than before and I’m gaining weight rapidly with no changes to my diet from before. My doctor won’t do anything about it. I refuse to live this way so I’m going to stop taking it. What am I supposed to do? I just want to feel better. Can any supplements alone fix my thyroid? I don’t want to continue the levothyroxine an become extremely overweight an feeling down an tired. What do I do? My doc isn’t helping an I am a cash paying patient with no insurance so I don’t want to keep going from doctor to doctor.

    • Reply
      Thyroid Advisor September 4, 2017 at 10:46 pm

      Hi Tiffany,

      I’m sorry to hear that. If levothyroxine is truly making you feel worse, I would talk with your doctor about changing the medication. It does not make sense to take a drug that makes you feel worse than before.

      As for your questions on thyroid supplements, I hate to say this: but it really depends on the individual. They work amazingly for some, who have gotten off their thyroid medications and just take supplements for now. But for others, they don’t work as well or have much of an effect at all. You could also be somewhere in the middle. I do think they are worth taking a shot with though.

  36. Reply
    Stacy September 19, 2017 at 8:31 pm

    I have been taking Synthroid for about 10 years or so now due to hypothyroid. I have also been dealing with other autoimmunes such as Alopecia Areata. I currently take a vitamin called Hair Essential which I find speeds up hair regrowth but does nothing for the loss. Is there any evidence that adding a thyroid supplement would slow down or prevent my AA? Thanks!

    • Reply
      Thyroid Advisor September 27, 2017 at 2:53 am

      Hi Stacy,

      There is a connection between hair loss and the thyroid, but I have not heard of any cases with Alopecia Areata due primarily to a thyroid disorder. It can’t hurt to try, but I would not get your hopes up.

  37. Reply
    Troy September 27, 2017 at 6:36 pm

    I’m kinda shocked you didn’t include 1 Body’s Thyroid Support in your analysis. What do you think of that one?

    • Reply
      Thyroid Advisor October 4, 2017 at 8:41 pm

      Hi Troy,

      We have not obviously reviewed all the thyroid supplements on the market. We give each review a lot of time, and right now, we have not had a lot of that recently, so we have taken a bit of a break on that. I’ll try to look at 1 Body’s Thyroid Support later down the line.

  38. Reply
    Casherie September 27, 2017 at 9:01 pm

    I know you don’t believe that liquid thyroid supplements are any better than capsules, but I have purchased the Thyrotain from Orthomolecular and find that the capsules are too large for me to swallow. I have a hard time swallowing capsules of supplements and have to have either very small tablets or liquid supplements, or sublingual tablets. Do you know any high quality supplements for thyroid that are sublingual or liquid form. There are some health drink companies that claim they support thyroid, like Plexus and Zeal (both are MLM) but I seem to have a detox effect when I take these and it is a very negative experience. I’d love your feedback or ideas. I’m open to tinctures or pretty much any type of alternative option to the capsules.

    • Reply
      Thyroid Advisor October 4, 2017 at 8:50 pm

      Hi Casherie,

      Liquid supplements usually cost a lot more and don’t contain as much needed nutrients as others, but it does certainly have good benefits, especially for those are have difficulty taking large capsules, like yourself. I’m sorry to say that I have not seen any high quality liquid thyroid supplements. It’s a really small area of a small region to begin with, so I can see why most companies don’t make it. I’ll try to keep an eye out though. In the meantime, finding supplements with smaller capsules, or maybe even trying to crush or break them down might help.

  39. Reply
    Barbara Marshall October 11, 2017 at 12:22 pm

    I am confused about iodine. Some websites say you shouldn’t take iodine if you have Hashimotos. What is your view?

    • Reply
      Thyroid Advisor October 22, 2017 at 3:08 am

      Hi Barbara,

      Good question! If you already know that Iodine affects you negatively, then obviously, you should not take supplements that contain Iodine.

      But if you don’t know, or if you did not have any negative experiences taking Iodine, then I believe you should try getting proper Iodine supplementation.

      I believe that proper Iodine intake is far beneficial than its potential drawbacks, so everyone should try it first and then see how it affects them.

  40. Reply
    Maureen Woeller October 16, 2017 at 9:00 pm

    I have been taking 200 mcg for a few years and still low energy and motivation. So much I want to do! Difficulty sleeping. Leg cramps etc. Gaining weight after gastric bypass 5 years ago. Like trying to get more energy. Take multiple vitamins, vitamin d, calcium, vitamin c, vitamin b complete etc. I am looking for supplements that would help booster my energy. Any advices would be appreciated.

    • Reply
      Thyroid Advisor October 22, 2017 at 3:11 am

      Hi Maureen,

      I would definitely recommend trying some of the supplements here. Most have money back guarantees, so you have nothing to lose!

      I noticed you said you take 200 mcg as well as calcium. Is that 200 mch of levothyroxine? Calcium actually interferes with the absorption of levothyroxine. It might be something to avoid, or at least avoid taking at the same time.

  41. Reply
    diana November 13, 2017 at 1:21 am

    I take daily womans vitamins .do i discontinue taking my daily vitamins when i take thyromate?

    • Reply
      Thyroid Advisor November 13, 2017 at 9:17 pm

      Hi Diana,

      Usually you should not have to discontinue one supplement to take another. A lot of people take multiple types of supplements at the same time.

  42. Reply
    Tom November 23, 2017 at 9:48 pm

    My mother takes thyroid supplements. I have been feeling tired lately. Should I take what she is taking too?

    • Reply
      Thyroid Advisor November 23, 2017 at 9:50 pm

      Hi Tom,

      It sounds like you could possibly have an underactive thyroid. An underactive thyroid, or hypothyroidism, has been shown to be hereditary. It might be a good idea to talk with your mother about what she takes and possibly start taking that as well.

  43. Reply
    Bunny November 25, 2017 at 11:11 pm

    Hi I just ordered some of the top recommended thyroid support supplements. One was by Pure the other 1 body. My question is, are my needs different if I have an auto immune disease and my thyroid has been destroyed. My Dr said I have no thyroid anymore. I take 60 mg of Armour. I previously took Synthroid. I feel no better on Armour. And I really dont like taking a pill from slaughtered pigs that Im sure lived a horrible life before death. I am switching back to Synthroid. So does suppliments help when I have no thyroid left?? Thank you for any info!!!

    • Reply
      Thyroid Advisor December 9, 2017 at 3:07 am

      Hi Bunny,

      If you do not have a thyroid anymore, thyroid supplements will be ineffective for support thyroid functionality. The nutrients might help for other parts, but no thyroid hormones can be produced inn your body if you no longer have a thyroid.

  44. Reply
    Gayle Hardick November 26, 2017 at 11:58 pm

    Hi I’ve been hypothyroid since I’ve been 18, I’m now 51. Synthroid worked up until age 45 then I started having extreme heart palpitations and anxiety. I went off synthroid and slept well, was able to actually sit and read a book and had no anxiety. Now I’m on tirosint once again I have extreme anxiety. Drs to combat this put me on anti depressants, Lorzepan and a blood pressure medicine to eliminate the nightmares Tirosint gives me. I traditionally have very low blood pressure. There has got to be a better way than to treat side effects with more drugs. My thyroid is now within the normal range. Any recommendations you can offer?

  45. Reply
    Kela November 27, 2017 at 5:02 pm

    Hey, what are high potency extracts?

    • Reply
      Thyroid Advisor December 30, 2017 at 7:16 pm

      Hi Kela,

      High potency extracts refer to the quality of the ingredients in the supplement. For example, with iodine it would likely be the plant in which it is extracted from. Higher quality sources often lead to higher quality supplements.

  46. Reply
    Jane December 31, 2017 at 8:28 pm

    I’ve been following thyroid advisor for some time now. Thanks for all the information and reviews you have done. This site helped me find a great thyroid supplement that makes me feel like those days when I was young! I was wondering when more thyroid supplements would be added. I am always looking for better ones that can make me feel even better.

    • Reply
      Thyroid Advisor January 2, 2018 at 12:17 am

      Hi Jane,

      Thanks for those kind words! We will be reviewing more thyroid supplements this year. It’s kind of hard, since we have normal jobs as well, but we do try to find the time to write posts and reviews.

  47. Reply
    Don December 31, 2017 at 8:36 pm

    How do we know whether we have a thyroid problem and how can these thyroid supplements help those who do?

    • Reply
      Thyroid Advisor January 2, 2018 at 12:14 am

      Hi Don,

      If you experiencing some/most of the symptoms of a thyroid disorder (some can be found here but you can google for the rest) and/or if your thyroid levels are not where they should be, then you likely have a thyroid problem. These thyroid supplements help to re-balance your thyroid through the unique combination of vitamins, minerals, herbs, amino acids, and nutrients they contain, and which are often forgotten from our diet.

  48. Reply
    Mary January 2, 2018 at 7:54 pm

    With the nation wide shortages of Nature-Throid and Wp Thyroid, more people are starting to try thyroid supplements. I wonder how people feel with these supplements compared to the other natural thyroid drugs or even the synthetic ones.

    • Reply
      Thyroid Advisor January 2, 2018 at 10:55 pm

      Hi Mary,

      The backorders with RLC Labs has been going on for some time now, but recently, according to their website, they started shipping out the low dosages of Nature Throid again. Its certainly a sad situation since a lot of patients rely on their drugs. Its part of their life – and not having any to take for a long period can really mess things up. I believe most were forced to take other natural thyroid drugs.

      I wouldn’t be surprised if some of them took thyroid supplements. While thyroid supplements are more natural, most of them do take some time to fully work in bodies. NDT’s on the other hand contain T3 hormones, as well as T4, so they’ll work a bit faster. It shouldn’t take too long for the patient to feel the effects after continually taking them. I would be interested in hearing what other patients feel – and how supplements effect them. From the other comments on this website, it certainly helps.

  49. Reply
    Lin January 11, 2018 at 7:25 pm

    Please do more reviews for thyroid supplements. I’m interested in learning which companies and supplements are worth it and which one’s are not! Thanks for this website and the resources you offer.

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