Top 5 Best Thyroid Supplements: Reviews, Pricing, and Buying Guide

Thyroid Diagram Xray

The search for the best thyroid supplements was admittedly a challenge. The number of choices that consumers have is just overwhelming. However, we believe we have found some of the best ones out there.

The whole process involved an in-depth product research with the utmost consideration to the varying consumer feedbacks that every product has received. We have specifically weighed our top picks on the basis of their ingredients, value, potency and of course, from real and unbiased consumer reviews.

We believe that a product is only as good as the quality of the results it offers. Hence, we can assure you that every product on this list has a proven track record of living up to their purpose.

Top 5 Thyroid Supplements

After conducting a thorough research, here are our top picks for the best thyroid supplements on the market. The goal of this list is to help you choose which products to take into consideration when you finally decide to give thyroid supplements a try. Although, please keep in mind that our individual needs may vary. Hence, that should be the primary basis of your decision when it comes to choosing the right thyroid supplement for you.




Serving Size



Support Metabolism, Improves Focus, Boosts Energy

Per Serving: 2 Capsules

Container Count: 60 Capsules

Vegan, Soy-free, Gluten-free, Non-GMO, Effective For Both Men And Women, Money Back Guarantee


Support Thyroid Health, Energy-booster, Improve Concentration And Memory, Assist Weight Loss

Per Serving: 2 Capsules

Container Count: 60 Capsules

Vegetarian And Non-GMO, Manufactured In An FDA-approved, CGMP Certified Facility In The USA, Money Back Guarantee


Support Thyroid Function, Promotes Healthy Metabolism And Weight Loss, Support Thyroid Hormone Production

Per Serving: 1 Capsules

Container Count: 60 Capsules

Non-GMO, Vegan, No Magnesium Stearate Or Excipients, gluten-free, Soy-free And Dairy-free, Manufactured In The USA


For Underactive Thyroid, Boosts Energy, Improve Blood Flow, Promotes Health Metabolism

Per Serving: 2 Capsules

Container Count: 120 Capsules

Non-GMO, Made In A CGMP-certified, FDA-Registered Facility In The USA, 100% Money Back Guarantee


Support Thyroid Function, Thyroid Hormone Production, And Metabolism, Assist Weight Loss, Increase Circulation

Per Serving: 2 Capsules

Container Count: 120 Capsules

Formulated And Manufactured In The USA,100%  Money Back Guarantee

Overall Best: Zhou Nutrition Thyroid Support

   Serving Size    

2 Capsules

Servings Per Container

60 Capsules

First off, just a quick info about Zhou Nutrition. The company’s slogan is “Greatness by nature” and there’s no better way to reiterate that than by applying the same philosophy to their products. According to them, being great is inherent to us. So, their aim is to help bring out that greatness by improving the mind, body, and soul.

Their business approach is also very holistic. From the quality of their products, manufacturing practices, and up to their customer service, Zhou Nutrition claims to fully commit and do great in all these aspects. The question is, are they living up to these statements?

Zhou Nutrition Thyroid Support is Amazon’s best seller under the Thyroid Extract Nutritional Supplements category and it’s no surprise that the product has gained such level of popularity among consumers.

Some of the main ingredients you can look forward to include Vitamin B-12 to boost a sluggish thyroid, L-Tyrosine to assist thyroid hormone production, Iodine to support thyroid hormone synthesis, Cayenne to help increase circulation, and Schizandra and Ashwagandha to promote weight loss. All of them are said to be effective for both men and women.

Another good thing about this product is its clean formula. It claims to be soy-free, gluten-free, non-GMO, and only contains an all-natural blend of ingredients which makes it very vegan-friendly. On top of it all, it is priced reasonably. In fact, there are a lot of thyroid supplements that are leaning more towards the expensive spectrum but couldn’t deliver as well as this product does.

The primary benefits it claims to offer include an increase in energy levels, healthier metabolism, and improved concentration. Although Zhou Nutrition doesn’t explicitly say that the supplement is exclusively formulated for a specific thyroid condition, they do mention on their website that those people with an underactive thyroid will benefit more from the product.

In terms of effectiveness, the product does not disappoint as well. For one, the majority of its consumers seem to be very happy with the results they are getting. Some of the most common positive feedbacks are increased stamina and energy level, alleviated mood, significant weight loss, sharper concentration, improved sleep, and relief from symptoms of anxiety, depression, and fatigue.

However, this supplement also has its fair share of drawbacks. A good amount of consumers are claiming to have experienced weight gain, headaches that can range from mild to severe, constipation, heart palpitations, and nausea. Also, these people have not seen any significant improvements in their current condition. Generally, they think the product simply doesn’t work for them.

On a lighter note, those same consumers have reportedly been refunded by Zhou Nutrition which they clearly appreciated despite their bad experience with the product. A good customer service definitely makes a lot of difference.

Overall, this product is very promising. The company certainly knows how to take care of their consumers and that is a huge plus point for them. Looking at the quality of the product, the pricing, and the positive reviews, it certainly deserves to be the overall best in this list.

Nonetheless, one can’t deny the fact that the complaints of some consumers appear to be signs of adverse reaction from the product.

Amazon's Choice: 1 Body Thyroid Support

   Serving Size        

2 Capsules

Servings Per Container

60 Capsules

“Only the best, because you only get 1 Body!”--that’s the brand’s tagline. Not the most original slogan, but still makes more sense than others. The company’s philosophy is also pretty straightforward. They believe that excellent nutrition leads to excellent lives and this belief is reflected in the quality of their products.

1 Body claims to manufacture premium quality supplements in a cGMP certified facility in the USA. Their approach is to provide only the best products at the most reasonable price. So, let’s see whether their thyroid supplement makes the cut.

1 Body Thyroid Support is one of the highly-rated and well-priced supplements on Amazon which makes it a highly-recommended product for thyroid support and many consumers can vouch for that.

The product contains almost the same ingredients as that of Zhou Nutrition Thyroid Support. Although, at a lesser amount per serving. Also, there is one ingredient form 1 Body Thyroid Support that stands out--the Coleus Forskohlii.

Coleus Forskohlii root extract is known to effectively stimulate the production of thyroid hormones. However, instead of directly targeting the thyroid gland, it focuses on the hypothalamic-pituitary axis which in turn, will result in the production of TSH (thyroid stimulating hormone).

This supplement is also non-GMO and vegan-friendly. It claims to be free from soy, milk, gluten, wheat, fish, eggs, and tree nuts. As for the price, it’s a tad more expensive than the Zhou Nutrition Thyroid Support. However, the addition of the Coleus Forskohlii in the ingredients should make the price difference worth it.

In terms of benefits, the product claims to improve metabolism, encourage weight loss with proper diet, restore focus, and boost energy levels. According to 1 Body, this supplement is specially formulated to help maintain an overall healthy thyroid function.

But, what do their consumers have to say?

Well, the majority of the positive claims involved an increase in energy levels and overall mood, improvement in metabolism, noticeable weight loss, sharper focus and concentration, and an improvement in the quality of sleep. Some consumers also noticed how their symptoms of depression and anxiety have significantly diminished or completely disappeared after a few weeks to a few months of taking the supplement.

Yet again, no product goes without a few loopholes here and there.

While most consumers are losing weight, some of them have either experienced the opposite or simply did not noticed any change at all. While others are sleeping well, a few consumers had difficulty doing so. Although others are noticing an improvement in their mood, some just felt like bursting into tears. In terms of side-effects, a couple of consumers have mentioned experiencing headaches, nausea, palpitations, and rashes.

1 Body Thyroid Support clearly has the ability to deliver the results it promised. While unsatisfied consumers are happy about getting their money back, we still can’t take their negative feedbacks for granted especially those involving signs of adverse reaction. It is safe to say that the product does work, but only for some people. Hence, potential consumers should exercise enough caution when taking the supplement.

The All-Natural Pick: LES Labs Thyroid Support

   Serving Size         

1 Capsule

Servings Per Container

60 Capsules

LES Labs is a relatively new competitor. The company started in 2009 but has since made a name of their own. They take pride in the quality of their products which they claim to be all-natural and scientifically-proven. According to their website, their formulations have undergone extensive research and development which explains their high potency.

The brand’s tagline is “Wellness through nature and science” and they are living up to this statement by formulating supplements that are natural, drug-free, non-GMO, vegan-friendly, gluten-free, dairy-free, soy-free, and contains no magnesium stearate or excipients.

LES Labs Thyroid Support has the majority of the same essential ingredients found in the first two supplements. It does, however, contain two specific vitamins that are not included in those products--vitamins E and D.

Vitamin E is known for its cellular effect on our thyroid and its role in the conversion of the T4 hormone to its active form. Vitamin D, on the other hand, is a crucial nutrient for our thyroid. Too much or too little of the said vitamin can have a potential effect on our thyroid’s overall health. Note that vitamin D deficiency is commonly associated with autoimmune thyroid diseases like Hashimoto's thyroiditis and Graves' disease.

This supplement is intended to promote healthy metabolism, support thyroid hormone production and synthesis, improve sleep regulation, stimulate energy production, and improve overall mood.

In terms of price, it initially appears to be quite expensive as it costs a few dollars more than the previous two supplements. However, it all comes down to the serving suggestion. They all contain 60 capsules but this product’s serving size requires only 1 capsule a day while the previous products require 2 capsules daily.

So far, a lot of consumers are impressed with the product’s effectiveness. In fact, some of the benefits they’ve experienced are improved digestion and metabolism, increased energy levels, enhanced mood, and better sleep quality. There are also those that have noticed a significant improvement in their hair loss condition which is one of the symptoms of hypothyroidism.

On the flip side, a handful of consumers claim to have not experienced any significant changes in their body. If anything, they appear to have developed some adverse reaction such as an upset stomach, diarrhea, and headache. Also, note that some consumers have pointed out how this product can cause nausea if taken on an empty stomach, so that is definitely something to keep in mind.

The all-natural formulation of LES Labs Thyroid Support and its proven benefits are all worth commending. However, a responsible consumer should not rely solely on the claims of the company selling the supplement and the reviews of those consumers who have experienced wonders from taking the product. Remember that we have our individual needs. So, what works for others may not necessarily work for us too.

Also, take into consideration that the company does not offer a money back guarantee, unlike the first two supplements we reviewed.

Best Value: Healths Harmony Thyroid Support

   Serving Size                   

2 Capsules

Servings Per Container

120 Capsules

Healths Harmony is another newcomer in the market. Since they started in 2014, the company claims to have provided their customers with excellent quality products and top-notch customer service. According to their website, their products are completely natural with no chemicals added and no side-effects. They are laboratory-tested and formulated in the USA at an FDA-approved facility.

Now, let’s talk about performance. Their thyroid supplement, particularly, has earned the Amazon’s choice badge for thyroid health and it looks like a lot of consumers can agree to that. But first, let’s get into the product specifics.

Healths Harmony Thyroid Support is said to be non-GMO with its formulation containing premium natural herbs and minerals. However, the company made it clear that the product is not completely vegetarian as it contains a gelatin ingredient that is sourced from cattle. Also, it contains the allergens soy and shellfish.

Just a side note, soy actually belongs to the food category referred to as goitrogens. These foods are said to promote the formation of goiter, so they are immediately assumed to be bad for your thyroid. Hence, you might think it’s quite ironic to see a soy ingredient in a thyroid supplement.

However, note that this claim is still debatable considering the lack of definitive and rigorous study regarding soy’s toxicity. Until experts manage to gather sufficient and conclusive evidence, it is best to control your soy consumption especially if you have an existing thyroid condition.

The supplement’s 14 natural ingredients which include L-Tyrosine, Vitamin B12, Iodine, and Ashwagandha Root among others are meant to normalize the overall thyroid function. Furthermore, it claims to be effective in boosting energy, improving blood circulation, fighting brain fog, and in stimulating weight loss.

On top of their natural and potent formulation, the product sells for a relatively cheaper price. Just like the LES Labs Thyroid Support, this product initially looks pricey at first glance. But, when you look at the label, it contains 120 capsules with a serving suggestion of 2 capsules a day. Basically, that’s a 2-month supply with twice the daily serving amount compared to LES Labs Thyroid Support.

You might wonder if the product truly works as advertised. Well, here’s what consumers have to say about it. More focus, clear thinking, high energy and stamina, uplifted mood, better sleep, and weight loss are among the positive things that majority of them have experienced.

Unfortunately, there are some people who were not able to get the most of the product’s benefits. Instead, they experienced the commonly reported adverse reactions like headaches, nausea, upset stomach, and palpitation.

Overall, there is no question that this product works--at least for some people. In that case, we can say that this product is certainly a bang for their buck. But, that is not to discredit the claims of those people who were disappointed with their experience. In fact, their statements should serve as precautions to potential consumers who might consider buying this product.

The Runner-Up: Purely Holistic Thyroid Support

   Serving Size        

2 Capsules

Servings Per Container

120 Capsules

“Natural. Nutritious. No nonsense.”

That is Purely Holistic’s tagline. With that in mind, they are said to provide non-GMO products with 100% pure ingredients and no added fillers or binders. They are also scientifically and clinically proven to provide maximum benefits.

Aside from that, Purely Holistic also has the reputation of delivering high-quality products at a much competitive price. You might wonder why this product did not take the “Best Value” title on this list. Well, here’s why.

First off, Purely Holistic Thyroid Support contains the exact same ingredients as that of the previous supplement we reviewed including the gelatin, soy, and shellfish. The price difference is pretty close as well. However, it all went down with the average customer reviews of each product and apparently, this one got a lower average of positive feedbacks between the two.

The benefits mentioned by the majority of its consumers include an increase in their energy level, improved metabolism, uplifted mood, better sleep, significant weight loss, and improved focus. On the contrary, some consumers are complaining of feeling sick, having burning burps, feeling nauseated, and getting headaches when taking the supplement. Thankfully, the company offers a money back guarantee.

Overall, this is a decent product that can easily be considered as a close competitor of the thyroid supplement from Healths Harmony and that is exactly why we listed it as the runner-up in this review.

How To Pick the Right Thyroid Supplement

Although we’ve narrowed your choices down to a few supplements, we can’t assume that these products will suit your personal needs as well as it did for others. That said, here’s a quick guide to help you pick the best thyroid supplement.

Read the label

When choosing a supplement, look for the active and inactive ingredients in the label. Note that the latter is often labeled as “other ingredients”. They are not always harmful to our body, but in some cases, inactive ingredients can include fillers and binders which you should avoid.

If you have any allergic reaction to certain foods, try to look for some allergens on the label as well. This can include soy, dairy or shellfish.

Finally, be mindful of the dosage. But first, you need to consult your doctor to determine your nutritional needs. That way, it would be easier for you to determine whether the amount per serving of a certain vitamin or mineral found in a supplement is just right for your needs.

Go natural

An all-natural supplement is certainly the best way to go. Do your own research and look for supplements that are made from natural ingredients or those that are plant-based. However, be careful of false claims. Make sure that you read enough reviews about certain products and their manufacturers before you jump right in and buy them.

If a manufacturer is a little apprehensive when it comes to disclosing the sources of their ingredients, then you should probably consider exploring other options.

Seek expert advice

Unless you are fully equipped with the knowledge about thyroid health and all the nutrients that are crucial for a normal thyroid function, then it would be best to seek for an expert advice from your own doctor.

Remember that whatever you ingest can and will affect your body one way or another. Also, you can’t guarantee that a supplement will work the same way as it does in other people. Bottom line is, it’s better to be safe than sorry.

Our Thyroid Gland: An Overview

Our thyroid is the butterfly-shaped endocrine gland found right below the Adam’s apple. It is composed of two lobes that are wrapped around the trachea and connected by a tissue called isthmus.

In terms of function, the thyroid gland secretes some of the most important hormones in the body that can influence our metabolism, growth, development, and overall health. Basically, a malfunctioning thyroid can easily hamper the different processes in the body, causing major complications if left untreated.

So, let’s take a closer look at these thyroid hormones in the next section of this article.

Thyroid Hormones In Action

The thyroid gland secretes 3 types of hormones namely, Triiodothyronine (T3), Thyroxine (T4), and Diiodothyronine (T2).

T4, being the main hormone secreted by the gland, makes up 90% of all thyroid hormones. T4 is converted by the liver into its active form T3 through the help of some enzymes. Experts, however, have very limited knowledge about the thyroid hormone T2 but it continues to be the subject of further research and studies.

These hormones help regulate our metabolism more than anything else. However, they also play an important role in our physical growth, sexual development, sleeping behavior, psychological stability, temperature tolerance, and digestive function among others.

For those reasons, any defect in the thyroid will reflect in a person’s growth rate, height, body weight, quality of sleep, overall mood, behavioral changes, level of tolerance to certain temperatures, and many others.

If the thyroid can significantly affect all these bodily functions, that should give us enough reason to take care of it more than ever. Perhaps by taking some thyroid supplements?

Who Needs Thyroid Supplements?

Just because you’re eating healthy, not in pain and exhibiting no obvious signs of illnesses, doesn’t mean you’re overall health is at its best. Sometimes it takes a little bit of courage and initiative to have yourself checked and get the confirmation you need from an expert in the field.

In the case of our thyroid, several medical procedures can be done to determine its current state. A blood test, for example, can easily measure the level of thyroid hormones present in your body. Any fluctuations in their normal range can indicate a thyroid problem.

Our thyroid’s health comes down to the nutrients that we intake. When the food we eat can’t supply enough nutrients, this is where supplements come in.

So, the answer to the question of “who needs thyroid supplements” is quite subjective. However, if your thyroid does need an extra boost, you should definitely consider taking supplements. But then again, this consideration has to be accompanied by some expert advice.

The Bottomline

The purpose of thyroid supplements is clear. In fact, we can see how the different products in this list have been advertised to provide the same benefits and majority of the consumers can attest to that. However, it is also very apparent that despite how impressively formulated a supplement is, that is still not a guarantee that everyone can reap all those supposed benefits.

At the end of the day, it all boils down to our individual needs and how our own body reacts to these supplements. So, as a consumer, your primary responsibility is to determine what your body needs and don’t need. After all, what’s the point of taking thyroid supplements if you don’t really need them? Why fix something that’s not broken?


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