The Best Thyroid Supplements

The thyroid is responsible for a variety of functions that help you feel your best. When it’s not working properly, you might experience symptoms such as fatigue, dry skin, weight gain, feeling cold, muscle weakness, hair loss, memory problems, and more. Thyroid supplements can help to support optimal thyroid functioning so that you feel your best.

Finding the best thyroid supplement for your needs means reading reviews, studying product features, and diving into the ins and outs of available formulas and complexes. With the right thyroid supplement, you can help to support optimal thyroid functioning and wellness.

We reviewed dozens of thyroid supplements to identify the best of the best, based on Amazon reviews, how well they performed in tests, cost, and other considerations. We narrowed our search down to 5 of the top-rated thyroid supplements people can purchase to ensure a healthy and balanced thyroid.

Top Pick
1 Body Thyroid Support Supplement with Iodine
A unique formula with vitamins and herbs that helps to support healthy thyroid function

We’ve identified 1 Body Thyroid Support Supplement with Iodine as the best thyroid supplement out there. With a unique formula containing vitamins and herbs that help to support healthy thyroid function, this thyroid supplement is one that will keep your system running in tip top shape. These benefits allow you to have the energy to get through your day, lose stubborn weight, and feel your best.

If You’re looking for ways to learn to lead a healthier life, you won’t want to miss out on How To Make Healthy Lifestyle Changes.

Legal Disclaimer

Note that any claims or statements have not been evaluated by the Food and Drug Administration, and that these products are not intended to diagnose, treat, cure, or prevent any disease.

The 5 Top-Rated Thyroid Supplements

Editor's PicksBrandRating
Best Overall1 Body Thyroid Support Supplement with Iodine4.4
Runner UpHealths Harmony Thyroid Support Supplement4.4
Best Budget BuyZhou Nutrition Thyroid Support Complex with Iodine4.0
Best Thyroid Support ComplexPure Encapsulations - Thyroid Support Complex4.3
Best Non-Glandular Thyroid SupplementThorne Research - Thyrocsin 3.9

*Ratings are from Amazon at the time of publication and can change

Our Top Pick: 1 Body Thyroid Support Supplement with Iodine

The 1 Body Thyroid Support Supplement with Iodine took the top spot on our list of the best thyroid supplements, and boasts a unique formula which contains vitamins and herbs that help to support healthy thyroid function. It contains vitamin B12, zinc, selenium, ashwagandha, copper, and coleus forskohlii, which have all been scientifically-proven to help improve thyroid functioning. This supplement is manufactured in the USA at a cGMP certified FDA-registered lab, and is free of many allergens such as wheat, gluten, soy, milk, egg, fish, and tree nuts.

Those who purchased and reviewed this thyroid supplement appreciated that it helped to noticeably improve their mood and energy levels, in a relatively short time span. People said they found their sleep also improved with this supplement. Some users reported stomach issues while taking this product, which is something to keep in mind if you have a sensitive tummy.

With a price tag of about $24, it’s not overly costly, and the quality associated with the brand, as well as the ease of use more than justifies that price. It has a rating of 4.4 on Amazon with more than 8,600 people reviewing it, which we think goes a long way in convincing people to give it a try.

1 Body Thyroid Support Supplement with Iodine Key Features: 

  • Contains 60 vegan capsules per bottle
  • Includes 150 mcg of iodine per serving
  • Third party tested for safety and quality

Our Runner Up Pick: Healths Harmony Thyroid Support Supplement

Runner Up
Healths Harmony Thyroid Support Supplement
Combines 14 key ingredients to help maintain normal thyroid function.

The Healths Harmony Thyroid Support Supplement took the runner-up spot on our list of the best thyroid supplements, and boasts a combination of 14 key ingredients that have been clinically proven to help maintain normal thyroid function. Each bottle contains a two month supply for added convenience, and has been manufactured to rigorous standards in the USA in a CGMP-certified, FDA-registered facility. The blend includes minerals zinc, copper, magnesium, manganese and selenium, as well as herbs schisandra and bladderwrack.

Those who purchased and reviewed this thyroid supplement appreciated that with just a few weeks of use, they noticed improved energy levels and sleep quality. Many people also commented that their mental clarity and focus improved while taking this supplement, and that they were able to break through their weight loss plateau. Some reviewers mentioned this product caused heartburn, but said it could be avoided by eating a meal before taking it.

At a cost of around $18, it’s a pretty affordable option, and the quality associated with the brand, as well as the ease of use more than justifies that price. It has a rating of 4.4 on Amazon with nearly 800 people reviewing it, which we think goes a long way in convincing people to give it a try.

Healths Harmony Thyroid Support Supplement Key Features: 

  • Contains 120 capsules per bottle
  • Non-GMO formulation
  • Best taken with a meal

Best Budget Pick: Zhou Nutrition Thyroid Support Complex with Iodine

Best for Budget
Zhou Nutrition Thyroid Support Complex with Iodine
A budget-friendly option that helps to improve clarity and focus.

The Zhou Nutrition Thyroid Support Complex with Iodine is an excellent choice for those looking for a thyroid supplement that won’t break the bank. It boasts a blend of vitamin B-12, iodine, magnesium, zinc, selenium, copper, manganese, molybdenum, L-Tyrosine, schizandra, ashwagandha root, bladderwrack, and cayenne pepper, in order to help improve clarity and focus while supporting thyroid health. It is manufactured in an FDA certified facility following GMP practices, and is lab tested for quality.

Those who purchased and reviewed this thyroid supplement appreciated that it was easy to swallow, and felt the ingredients used were of a quality source. Many people commented that their sleep and energy levels improved with this supplement. Some people did notice that this supplement gave them diarrhea, headaches, and jitters, so be on the lookout for adverse reactions and discontinue use if you have a reaction.

With a cost of approximately $14, this thyroid supplement is a solid choice for those looking for a thyroid supplement option on a budget. It has a rating of 4.0 on Amazon with nearly 5,000 people reviewing it, which we think goes a long way in convincing people that this budget-friendly pick is just as good at balancing and supporting their thyroid as its more expensive counterparts.

Zhou Nutrition Thyroid Support Complex with Iodine Key Features: 

  • Suitable for use by both men and women
  • Gluten-free and soy-free
  • Vegetarian friendly, non-GMO formula

Best Thyroid Support Complex: Pure Encapsulations – Thyroid Support Complex

Best Thyroid Support Complex
Pure Encapsulations - Thyroid Support Complex
Contains vitamins, minerals, and herbal extracts to nourish and support healthy thyroid function.

The Pure Encapsulations – Thyroid Support Complex is an excellent choice for those looking for a thyroid support complex. It contains a blend of various vitamins, minerals, and herbal extracts which help to nourish and support healthy thyroid function. The addition of vitamins A and C, as well as selenium and guggul, provide antioxidant support to neutralize free radicals, for improved wellness. The supplement does not contain any wheat, gluten, egg, peanuts, magnesium stearate, hydrogenated fat, artificial sweeteners and colors, and other unnecessary excipients. It is hypoallergenic, for those with dietary sensitivities.

Those who purchased and reviewed this thyroid supplement appreciated that the capsules were easy to swallow, and liked that the formula was hypoallergenic. People commented that their energy level improved and mood was better while taking this supplement. Some even said their blood work showed thyroid levels normalizing! A word of caution — this supplement is best for those with hypothyroidism, not hyperthyroidism.

With a price tag of about $49, it doesn’t come cheap, but the quality associated with the brand, as well as the ease of use more than justifies that price. It has a rating of 4.3 on Amazon with more than 200 people reviewing it, which we think goes a long way in convincing people to give it a try.

Pure Encapsulations – Thyroid Support Complex Key Features: 

  • Available in a choice of sizes: 60 capsules or 120 capsules
  • Research-based formula
  • Best taken with food

Best Non-Glandular Thyroid Supplement: Thorne Research – Thyrocsin

Best Non-Glandular Thyroid Supplement
Thorne Research - Thyrocsin
Made with ingredients from the purest sources worldwide.

Thorne Research – Thyrocsin is a solid option for those wanting a thyroid supplement that does not contain glandular tissues. It boasts a blend of nutrients and botanicals that help to enhance T4 levels, including iodine, tyrosine, and ashwagandha. It also contains nutrients for peripheral conversion of T4 to T3, including selenium, zinc, and copper. All of the ingredients come from the purest sources worldwide, to create a quality product. It also contains iodine, which is necessary for formation of T4.

Those who purchased and reviewed this thyroid supplement appreciated that it helped with energy levels, and offered a vegan-friendly formula. Those who took this supplement to treat underactive thyroid said it helped improve memory, stop weight gain, and even halted hair loss within a couple of weeks of use. Some users with stomach problems did notice an increase in those symptoms, which is something to be mindful of.

At a cost of around $32, it doesn’t come cheap, but the quality associated with the brand, as well as the ease of use more than justifies that price. It has a rating of 3.9 on Amazon with nearly 100 people reviewing it, which we think goes a long way in convincing people to give it a try.

Thorne Research – Thyrocsin Key Features:

  • Each bottle contains 120 capsules
  • Free of gluten, stearates, wheat, rye, barley, eggs, and nuts
  • Contains no GMOs or artificial preservatives

Who Should Buy a Thyroid Supplement

A thyroid supplement is an ideal choice for those who are experiencing symptoms of thyroid dysfunction. The thyroid is responsible for a wide range of bodily tasks that help you feel your best. When your thyroid is not functioning properly, you may experience symptoms such as fatigue, dry skin, weight gain, feeling cold, muscle weakness, hair loss, memory problems, and more. Thyroid supplements can help to support optimal thyroid functioning so that you feel your best.

While a healthy, balanced diet is one of the best ways to ensure that you’re getting all the vitamins and minerals your body — including your thyroid — needs, it can be difficult to achieve with today’s modern diets. This is where supplements can come in handy — in providing a boost where certain aspects may be lacking.

Thyroid supplements can also be helpful for those taking thyroid medications. Many people find that they are able to decrease the amount of prescription medications they require by adding a natural supplement into their regime.

As always, with anything that comes to your health, it’s best to consult with your primary care physician or other member of your health care team before you start taking any medication or supplement, including those listed in this article.

Top Pick
1 Body Thyroid Support Supplement with Iodine
A unique formula with vitamins and herbs that helps to support healthy thyroid function.

Important Features to Consider

Not all thyroid supplements are created equal. A thyroid supplement should be safe and effective. Here’s what to consider when evaluating the options in search of the best thyroid supplement for your needs:

  • Ingredients. Arguably the most important factor when it comes to choosing the best thyroid supplement is the ingredient list. Research shows that there are certain ingredients that are beneficial for optimal thyroid function, and lessening the symptoms of thyroid dysregulation. These include: iodine, for T3 and T4 hormone production; vitamin B12, for focus and energy; copper, to regulate thyroid hormone levels; L-Tyrosine, an amino acid necessary for making T4 hormone; ashwagandha, an herb that supports balanced thyroid hormone and cortisol levels; selenium, to support efficient thyroid synthesis and metabolism; zinc, for converting the thyroid hormone T4 to T3; and vitamin D, to improve TSH levels.
  • Fillers and allergens. Many supplements contain filler ingredients or allergens such as corn, soy, gluten, and dairy. Always be sure to read the label carefully to ensure that any supplement you’re considering is free from these ingredients if you’re sensitive. This includes artificial ingredients and flavors.
  • Format. Thyroid supplements are generally available in one of two formats: capsules or liquid. There are some who argue that a liquid formula is better absorbed, while others find them messy and hard to dose. Capsules are often well tolerated by the majority of people, and are easy to take while travelling.
  • Non-GMO. For some people, ensuring their diet is as free of processed ingredients as possible is part of their overall wellness strategy. Finding a thyroid supplement that is non-GMO project verified can help ensure they’re avoiding any genetically modified ingredients.
  • Price point. Finally, consider how much you are willing to spend on a thyroid supplement. Thyroid supplements vary in price from $10-$50 or more for a month’s supply, so compare the cost per dose to see which best fits your budget.

Frequently Asked Questions

What are thyroid supplements and how do they work?

A thyroid supplement is a type of supplement (usually containing a blend of various vitamins and minerals) which helps to regulate thyroid function. They do this depending on the ingredients that are in the supplement, and what the research shows. For example, iodine helps with T3 and T4 hormone production, vitamin B12 aids focus and energy, copper can help to regulate thyroid hormone levels, and L-Tyrosine is an amino acid that is necessary for making T4 hormone. Various other vitamins and minerals can help to improve various thyroid hormone levels and conversion, and lessen symptoms of a dysregulated thyroid.

How can I boost my thyroid naturally?

You can boost your thyroid naturally by ensuring you’re getting adequate levels of the most essential vitamins and minerals for thyroid function on a daily basis. A balanced diet should be enough, but you can also prioritize foods such as sea vegetables, saltwater fish, nuts, seeds, lentils, yogurt, ricotta cheese, wild rice, dark green vegetables, sardines, brazil nuts, brown rice, pinto beans, dates, chicken, turkey, cottage cheese, almonds, avocados, bananas, pumpkin, and sesame seeds. Ensuring you get a moderate amount of physical activity on a regular basis, adequate nightly sleep, and plenty of water are all important things that can help boost your thyroid naturally. Finally, be sure to manage your stress levels, as excessive stress can wreak havoc on thyroid function and hormones.

What are the side effects of thyroid supplements?

Side effects of thyroid supplements include headaches, heart palpitations, increased blood pressure, anxiety and nervousness, difficulty sleeping, decreased exercise tolerance, and digestive issues such as stomach cramps, diarrhea, and reflux. With anything that affects your health, it’s best to consult with a member of your health care team before you start taking a thyroid supplement, and to discontinue use if you notice any adverse side effects.

Can thyroid supplements cause weight gain or weight loss?

Many people find that thyroid supplements help them lose weight. This likely happens when hormones begin balancing, and the thyroid starts functioning at a more optimal level. People with hypothyroid often experience weight gain and difficulty losing weight, while people with hyperthyroid often experience the opposite. The American Thyroid Association notes that, “Many studies have shown that excess thyroid hormone treatment can help produce more weight loss than can be achieved by dieting alone.”

Other Thyroid Supplements We Reviewed

Top Pick
1 Body Thyroid Support Supplement with Iodine
A unique formula with vitamins and herbs that helps to support healthy thyroid function.

We looked at 20 other thyroid supplements. Even though they didn’t make our 5 best thyroid supplements list, they’re the best of the rest and each is still a great option for supporting optimal thyroid health. The information you’ll need to compare each one is included with the listing.

Thyroid Support Complex

Dr Emil – Thyroid Support Supplement with Iodine

Dr Emil - Thyroid Support Supplement with Iodine

This thyroid support complex boasts a natural, scientifically formulated blend of ingredients which help support thyroid hormone function, to aid metabolism and weight loss, boost energy levels, and improve mental clarity.

Key Features: 

  • Contains iodine
  • Made with non-GMO ingredients
  • Free of the top 8 allergens

Cost: $23

Purely Holistic Thyroid Support Supplement

Purely Holistic Thyroid Support Supplement

This thyroid support complex boasts a potent blend of natural ingredients that work to support healthy thyroid function, and contains iodine for added support.

Key Features: 

  • Money-back guarantee
  • Contains 120 capsules
  • Made in the USA

Cost: $21

Thyroid Essentials Thyroid Support Supplement

Thyroid Essentials Thyroid Support Supplement

This thyroid support complex boasts ingredients such as vitamin K12, iodine, guggulsterone extract, L-selenomethionine, and more, to safely and naturally balance thyroid levels.

Key Features: 

  • Includes a money-back guarantee
  • Contains 60 capsules
  • Vegetarian-friendly formula

Cost: $40

Omni Life Thyroid Support Supplement with Iodine

Omni Life Thyroid Support Supplement with Iodine

This thyroid support complex boasts a gluten-free formula that is made using non-GMO ingredients, and is third party tested for safety and quality.

Key Features: 

  • Contains 60 capsules
  • Vegetarian-friendly formula
  • Includes a lifetime guarantee

Cost: $18

Nature’s Wellness Thyroid Support Complex With Iodine

Nature's Wellness Thyroid Support Complex With Iodine

This thyroid support complex boasts no artificial ingredients, and works to increase energy levels and metabolism. It has been made in the USA in an FDA-approved, GMP-compliant facility.

Key Features: 

  • Contains 60 capsules
  • Suitable for both men and women
  • Money-back guarantee

Cost: $18

Gloryfeel Thyroid Support Supplement with Iodine

Gloryfeel Thyroid Support Supplement with Iodine

This thyroid support complex helps to boost energy and metabolism, and boasts a vegetarian-friendly formula. It is made in the USA in an FDA registered facility.

Key Features: 

  • Contains 120 capsules
  • Includes iodine
  • Money-back guarantee

Cost: $18

Underactive Thyroid Supplements

Rejuvica Health Thyrobin Thyroid Support

Rejuvica Health Thyrobin Thyroid Support

This underactive thyroid supplement boasts a liquid formulation that is easy to dose and absorb. It includes many thyroid-stimulating herbal extracts and nutrients to help support weight loss and metabolism.

Key Features: 

  • Includes iodine
  • Vegetarian-friendly formula
  • Contains 48 servings per bottle

Cost: $33

NOW Supplements Thyroid Energy

NOW Supplements Thyroid Energy

This underactive thyroid supplement boasts a non-GMO formulation of minerals and herbal extracts. It contains both iodine (from kelp) and tyrosine, and features a Kosher-friendly formulation.

Key Features: 

  • Vegetarian-friendly formula
  • Contains 90 capsules
  • Available in a choice of sizes

Cost: $9

RLC Labs i-Throid

RLC Labs i-Throid

This underactive thyroid supplement helps to enhance healthy thyroid function, and works with the body’s natural amino acids to help produce hormones that are key to optimal health.

Key Features: 

  • Contains 90 capsules
  • Free of the top 8 allergens
  • Artificial color-, flavor-, and preservative-free

Cost: $15

Ancestral Supplements Kidney

Ancestral Supplements Kidney

This underactive thyroid supplement is made from pasture-raised bovine kidney, and is high in vitamin B12 and selenium to help promote urinary and thyroid health.

Key Features: 

  • Hormone-, pesticide-, and GMO-free
  • Manufactured in the USA
  • Contains 180 capsules

Cost: $44

LES Labs Thyroid Support

LES Labs Thyroid Support

This underactive thyroid supplement contains selenium, iodine, and L-Tyrosine to help support healthy thyroid function in order to improve mood, metabolism, and energy levels.

Key Features: 

  • Contains 60 capsules
  • Contains no artificial colors, flavors, or preservatives
  • Vegetarian-friendly formulation

Cost: $30

Integrative Therapeutics – DHEA-5

Integrative Therapeutics - DHEA-5

This underactive thyroid supplement contains micronized DHEA to help support optimal adrenal and thyroid health. The formula has been designed for enhanced absorption and bioavailability.

Key Features: 

  • Contains 60 capsules
  • Free of sugar, salt, yeast, wheat, gluten, corn, soy, and dairy
  • Vegetarian-friendly formulation

Cost: $9

VitaStrength Thyroid Support

VitaStrength Thyroid Support

This underactive thyroid supplement helps to improve circulation, metabolism, and overall thyroid function, thanks to a blend of natural ingredients that work to support thyroid health.

Key Features: 

  • Contains 60 capsules
  • 60-day money-back guarantee
  • Includes iodine and L-Tyrosine

Cost: $12

NM Nature’s Main Thyroid Support Energy Pills

NM Nature's Main Thyroid Support Energy Pills

This underactive thyroid supplement boasts a precise blend of 14 high-quality, clinically studied ingredients suggested to safely improve thyroid health while naturally increasing energy levels.

Key Features: 

  • Contains 60 capsules
  • Includes iodine
  • Made in the USA in an FDA-approved, GMP-compliant facility.

Cost: $15

Gaia Herbs Thyroid Support

Gaia Herbs Thyroid Support

This underactive thyroid supplement helps to support healthy metabolic balance, and contains a synergistic herbal blend to promote healthy levels of thyroid hormones.

Key Features: 

  • Contains 120 capsules
  • Vegetarian-friendly formulation
  • Free of gluten, soy, dairy, meat, peanuts, sesame, shellfish, yeast, and eggs

Cost: $32

Iodine Mineral Supplements

J.CROW’S® Lugol’s Solution of Iodine 2% 2oz

J.CROW'S® Lugol's Solution of Iodine 2% 2oz

This iodine mineral supplement boasts a 2% concentration liquid formula that never expires. Each bottle contains approximately 1200 vertical drops per 2 oz. container.

Key Features: 

  • No refrigeration required
  • Derived from mined crystals
  • Low heavy metal verified

Cost: $14

Life Extension Sea-Iodine Capsules

Life Extension Sea-Iodine Capsules

This iodine mineral supplement contains sea-iodine derived from organic sea algae, a trace mineral essential to healthy thyroid function and often lacking in today’s modern diet.

Key Features:

  • Contains 60 capsules
  • Vegetarian-friendly formulation
  • Non-GMO verified

Cost: $6

Global Healing Center Detoxadine

Global Healing Center Detoxadine

This iodine mineral supplement boasts a liquid formulation that is highly absorbable, and contains 1 fluid ounce per bottle. It works to nutritionally support the thyroid to encourage normal hormone balance.

Key Features: 

  • Sourced from ancient salt deposits
  • Gentle flavor
  • Certified organic and GMO-free

Cost: $30

Go Nutrients Nascent Iodine Supplement

Go Nutrients Nascent Iodine Supplement

This iodine mineral supplement boasts an easy-to-absorb liquid formulation, and is made in the USA in an FDA-approved, GMP-compliant facility.

Key Features: 

  • Money-back guarantee
  • Contains 1 fl. oz. per bottle
  • Third party tested for safety and quality

Cost: $28

Peak Performance Raw Whole Food Iodine

Peak Performance Raw Whole Food Iodine

This iodine mineral supplement boasts iodine sourced from raw organic kelp, which is more easily digested and assimilated into the body for improved thyroid support, hormonal balance, and immune support.

Key Features: 

  • Contains 60 capsules
  • Vegetarian-friendly formula
  • Free of the top 8 allergens

Cost: $18

Products You May Be Interested In:

Avatar