Best Thyroid Supplements for Weight Loss (Top Picks)

By Tami Smith, CPT, Nutritionist

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A lot of people don’t think twice about the health of their thyroid unless they have been diagnosed with some sort of health issue relating to this part of their body. However, the thyroid is an incredibly important butterfly-shaped gland that is near your throat. The thyroid is responsible for controlling many of your internal organs, such as your brain, heart, liver, skin and kidneys. When thyroid function isn’t optimal, this can lead to things like issues with weight, low energy, trouble sleeping, anxiety and even hair loss.

With more than three million new cases of thyroid disease diagnosed each year, now is the perfect time to start paying attention to this part of your body. Regulating your thyroid function naturally can ensure that you feel energetic each day, you’re getting sufficient rest and you’re able to maintain a proper weight. An underactive thyroid can result in weight gain, while an overactive thyroid results in potential weight loss. In this article I want to talk about some of the best thyroid supplements that are being sold for weight loss.

Quick Table of Top-Rated Thyroid Supplements and Buying Guide

Thyroid Supplement

Claimed Benefits

Key Ingredients


Could stimulate the thyroid, intensify and boost metabolism, and melt body fat

Acetyl L-Carnitine HCI, Green Coffee Bean Extract, L-Threonine, Raspberry Keytones

4.8/5 (Over 350 reviews)

Could enhance T4 hormone levels and support peripheral conversion of T4 to T3.

Vitamin C, E, B12, Iodine, Zinc, Selenium, L-Tyrosine, Ashwagandha Extract

4.9/5 (5 reviews)

Could support immune function, fight brain fog, stay energized

Vitamin B12, Iodine, Magnesium, Zinc, Selenium, Ashwagandha Root Powder

4.8/5 (Over 100 reviews)

Could restore protein synthesis inside cells, reduce peptide deficiency

Micro Crystalline Cellulose, Peptide Complex A-2

4.9/5 (2 reviews)

Could help reduce stress, boost energy, restful sleep

Reishi mushroom, Cordyceps mushroom, Ashwagandha

4.7/5 (18 reviews)

Will taking thyroid supplements help me lose weight?

weight loss and thyroid supplements

If you’re looking to lose weight and are thinking about targeting your thyroid health for this purpose, it’s important that you’ve had your thyroid checked prior to starting any kind of supplement regimen. Your doctor can run some basic blood tests to check the function of your thyroid. Once you have received your results, you’ll be able to tell if you need to address an overactive thyroid gland, an under-active thyroid gland or just thyroid health in general.

Could Help Naturally and Safely Optimize Thyroid Function

T3 is an active thyroid hormone produced by the thyroid that can help boost your metabolism and increase weight loss. A beneficial thyroid supplement should help you boost the production of T3 by way of T4 production (also known as thyroxine). There are a number of nutrients that can help your thyroid balance these hormone productions. This includes zinc, vitamin A, selenium, rhodiola, ashwagandha and phytochemicals.

May Help Boost Metabolism

A lot of people with an under-active thyroid (hypothyroidism) develop this condition because they are deficient in a number of essential nutrients. When you add these nutrients back into the body, this can result in course correction of thyroid dysfunction. The thyroid controls and regulates your metabolism, so this is an all-encompassing approach. The faster your metabolism is, the more calories that are being burned. As long as you’re not over-consuming those calories, you should be able to achieve weight loss with the use of a thyroid supplement that increases metabolism.

Could Help Reduce Stress

Your thyroid works very closely with your adrenal glands, which produce hormones that help the body properly handle stress (in addition to regulating kidney function and growth). When your body is under high levels of stress and your adrenals / thyroid aren’t reacting the way they should, this can cause your metabolism to slow down. You may notice that you experience more bodily symptoms associated with your stress, such as headaches, anxiety or trouble sleeping. A thyroid supplement will keep your hormone production balanced so your stress response is adequate.

May Provide More Energy

When your thyroid is functioning properly, you probably feel energetic and happy throughout the day. When your thyroid is over functioning or not functioning enough, you may notice a shift in your energy. Choosing a thyroid supplement that contains selenium, iron, zinc and iodine will help your body stay focused and energetic over the course of the day. You should also sleep better at night, allowing you to wake up feeling refreshed.

What to Look For

choosing thyroid supplements

Shopping for a thyroid supplement doesn’t have to be difficult. While you can ask your doctor for recommendations on a prescription thyroid medication that will help balance your thyroid function, natural ingredients are often the safest way to go. Let’s talk more about what you should be looking for in a thyroid supplement.

Trust: Brand Transparency and Transparent Ingredients

Always inspect the full list of ingredients that are included in a thyroid supplement. A trustworthy brand will clearly provide this information so you know what you’re consuming. It’s also helpful if you choose a brand that explains where each of these ingredients is sourced. There’s a big difference between a naturally sourced ingredient, versus something that is formed in a lab. General statements about a product’s ingredients, usually means that the brand is hiding something.

Safety: Third Party Tested

Reputable supplement companies invest in third-party testing to check the overall quality, safety and potency of their products. If you determine that a brand has skipped over this process, can you really trust that they care about the quality of the products they’re creating and selling? Results of third-party testing should be transparent to the public, either on their website or they will send you the information if you request it.

Effectiveness: Results and Good Reviews from Verified Buyers

Read through the reviews that you can find on a specific thyroid supplement that you’re interested in purchasing. Are the reviews favorable? Are there concerns that you have after reading about negative experiences? Hearing what real people in the real world experienced when taking a supplement can help paint a picture of what you might experience. Don’t stop at the company’s website. Check other retail sites to see what their reviews look like. Many brands will tailor their reviews to paint a more favorable picture of what they’re trying to sell.

The Five Best Thyroid Supplements for Weight Loss

Now it’s time to take a look at the five best thyroid supplements that you should consider for weight loss purposes. These are products made by trustworthy brands.

#1: 1st Phorm THYRO-DRIVE

1st phorm thyroid supplement

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Thyro-Drive by 1st Phorm is an essential thyroid supplement that can help you along on your weight loss journey. If you are suffering from an under-active thyroid, Thyro-Drive can stimulate the production of T3 and T4 hormones. This helps raise your metabolic rate as well as your internal body temperature. Your body will experience an increase in calorie consumption.

While you may notice that you experience more restful sleep and increased energy levels during the day when using Thyro-Drive, you shouldn’t have any kind of jitters or irritability as long as you don’t take it right before bed. If you’re looking for a way to increase your workout endurance but don’t want to utilize caffeine or other stimulants, this is a natural and safe way to maximize fat loss.


  • Promotes weight loss through improved metabolic function
  • Stimulates the thyroid safely and effectively
  • Contains natural ingredients such as green coffee bean extract, raspberry ketones, kelp powder and ginger


  • Shouldn’t be taken after 5 P.M. if you don’t want to experience difficulty sleeping

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#2: Thorne Thyrocsin

thyroid supplement thorne

Thyrocsin by Thorne is a natural supplement that provides nutritional and botanical support for optimal thyroid function. The included ingredients enhance the production of T4 hormone, supporting the conversion of T4 to T3. This product contains tyrosine, vitamin E, vitamin C, vitamin C, selenium, ashwagandha, iodine and zinc.


  • Does not contain any artificial ingredients like flavorings, colors, etc.
  • A thyroid blood test is available through Thorne that will give you a good idea of how your thyroid is functioning
  • Gluten free, soy free and dairy free
  • You can save up to 20 percent by subscribing to regular product deliveries


  • Contains iodine, which carries a potential allergic reaction warning for sensitive individuals

#3: ZHOU Thyroid Support Supplement

thyroid supplement zhou nutrition

ZHOU strives to provide your thyroid with what it needs to function optimally. This Thyroid Support Supplement contains essential ingredients like iodine, vitamin B12 and zinc. It can fight brain fog and energize you for busy days ahead. Metabolism support comes from other ingredients such as copper, manganese, magnesium and molybdenum. Ashwagandha and vitamin B12 are included to support your body with long term energy while fighting against brain fog. You can also increase your circulation and increase energy levels with bladderwrack and cayenne pepper powder.


  • Specially formulated with beneficial nutrients and ingredients in mind (such as vitamin B12, zinc, iodine and magnesium)
  • Does not contain any synthetic hormones
  • ZHOU screens their products for contamination from gluten, soy, milk, eggs, fish, tree nuts, peanuts and wheat
  • This is a vegan friendly product
  • Contain free form l-tyrosine for increased energy, improved mood and a better stress response


  • May cause cramping and bloating in sensitive individuals

#4: Thyreogen by Qi Supplements

thyroid supplement qi supplements

Thyreogen is a natural thyroid peptide supplement that can be used to balance bodily functions such as metabolism and weight loss. When taken regularly, your body will be able to break down food into energy more effectively. You can also prevent thyroid dysfunction that can lead to weight gain, depression, dry skin, muscle cramps and lethargy. Thyreogen contains a natural peptide complex and no other herbs or ingredients.


  • Reduces peptide deficiency
  • Restores protein synthesis inside of your cells
  • Functions as a peptide bioregulator similar to those naturally occurring in the body
  • Well tolerated without many reported side effects


  • The cost is a bit expensive at $135 for 60 capsules

#5: Ancient Nutrition Thyroid Capsules

thyroid supplement ancient nutrition

Ingredients such as reishi mushrooms (support an overall healthy immune system), ashwagandha leaf and root extract (promotes healthy energy support and reduces fatigue), fermented astragalus root (an overall health supporter) and eleuthero root are included in this product to promote health and wellbeing for your thyroid so that you can ensure your metabolic processes are efficient. You will be able to better use the food that you’re eating to increase your energy reserves, reduce stress and eliminate fatigue.

Ancient Nutrition uses the power of fermentation to ensure the quality of their products. Fermentation breaks down ingredients into components that are easier for the body to absorb. This is a science-backed approach to thyroid health that incorporates organically sourced ingredients. This means you don’t have to worry about inadvertently consuming pesticides or fertilizers into your body. That toxicity would also have a profound effect on your thyroid function and overall bodily health.


  • Helps promote better response to stress
  • Increases energy
  • Promotes positive mindset and emotional wellbeing
  • Improves the quality of your sleep


  • Ashwagandha can produce side effects in certain people, such as stomach discomfort and sleepiness. It’s best to try this product out when you’re at home so it doesn’t interfere with your day.

The Bottom Line

It’s likely that you spend time thinking about your heart health, how well your brain is functioning and maybe even the condition of your lungs. However, your thyroid deserves just as much attention as these other important parts. While it may be a small gland that you don’t always realize is there just under your larynx, it’s always hard at work. Your thyroid function can affect anything from the health of your skin to your muscle function.

You can provide your thyroid with support without having to turn to harsh prescription medications or supplements that will result in unwanted side effects. All of the thyroid supplements for weight loss that I’ve discussed here are very gentle, yet provide essential support to your thyroid. It’s a good idea to talk with your doctor before starting any kind of supplements for thyroid support. If you’re dealing with an overactive or under-active thyroid, you should proceed with caution and with the support of a trusted medical professional.

Tips for Success from the Nutritionist

If you think that you’re dealing with weight issues or health problems relating to your thyroid function, reach out to your doctor to find out if you should consider diagnostic tests to see what’s going on. In addition to medical-based solutions, you can try natural supplements and lifestyle changes to maintain a healthy thyroid. Here are some tips that can get you started.

Watch Your Diet

Our immune system plays a big role in the health of our thyroid. Much of our immune system is located in our gut, so it’s important to pay attention to the foods that we choose to eat. Avoid highly processed foods, refined sugar, MSG, high fructose corn syrup and saturated fats in order to prevent inflammation in your gut and GI tract. Stick with foods like vegetables, fruits, fatty fish, lean protein and healthy oils (olive, coconut and avocado).

There are also some foods that are healthy and high in nutrients, but they can actually cause some imbalances for your thyroid. This includes Brussels sprouts, kale, cabbage and cauliflower. Anything that's considered cruciferous (part of the cabbage family) should be eaten in great moderation.

Skip the Plastic

Plastic water bottles, food containers and bags are all damaging to the environment, but did you know that they can also leach chemicals into your food that can impact your thyroid health? Switch to healthier storage options, like stainless steel water bottles and glass food containers.

About the author 

Tami Smith, CPT, Nutritionist

Tami Smith is a certified Nutritionist and an ACE certified fitness trainer, specializing in pre and post-natal fitness. She studied business and earned her bachelor's degree in Business Economics. Tami is a mom of two and women's health advocate. Her passion is to help people live a fit, healthy life through proper nutrition and exercise!

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