Best Iodine Supplements for Metabolism Support of 2026

Elisa Drew Avatar
Elisa Drew
Last Updated: Jan 23, 2026

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Iodine is a crucial nutrient that plays a vital role in maintaining optimal thyroid function and metabolism. While iodine is naturally found in some foods like seaweed, dairy, and fish, many people may not get enough through their diet alone. Iodine supplements can be a helpful way to support healthy metabolism and thyroid function. These supplements come in various forms, including tablets, capsules, and drops, and are available in both synthetic and natural forms. It's essential to speak with a healthcare professional before starting any supplement regimen to ensure it's safe and appropriate for individual needs.

At a Glance: Our Top Picks

Organic Lugol's Iodine 2% Solution - Liquid Supplement Drops for Thyroid Support Cover #TOP 1
Organic Lugol's Iodine 2% Solution - Liquid Supplement Drops for Thyroid Support
ftb score rating icon 9.8
Thyroid Support Supplement - Energy & Focus Formula Cover #TOP 2
Thyroid Support Supplement - Energy & Focus Formula
ftb score rating icon 9.7
Pure Encapsulations Iodine Supplement 120 Capsules Cover #TOP 3
Pure Encapsulations Iodine Supplement 120 Capsules
ftb score rating icon 9.5

Top 10 Iodine Supplements for Metabolism Support

Organic Lugol's Iodine 2% Solution - Liquid Supplement Drops for Thyroid Support

2 Fl Oz (Pack of 1)
Organic Lugol's Iodine 2% Solution - Liquid Supplement Drops for Thyroid Support Cover
Organic Lugol's Iodine, Iodine and Potassium Iodide 2% Solution 3000 mcg - Liquid Supplement Drops for Thyroid Support for Women & Men, Metabolism Health, Detox Boost - Non-GMO, 395 Servings (2 Oz)

The Organic Lugol's Iodine 2% Solution is a liquid supplement drop that helps reduce thyroid vascularity, assists in maintaining consistent metabolism and energy levels, and improves cognitive performance. It is made of the highest quality ingredients, non-GMO, gluten-free, soy-free, dairy-free, vegan-friendly, and free of any artificial flavors and synthetic dyes. This supplement will help you maintain healthy hormone levels and support a healthy endocrine system. Plus, the Love It or Return It Guarantee ensures that you can try it risk-free.

What We Like
Thyroid support
High potency dosage
Long-lasting supply
Easy liquid dosing
Organic and non-GMO

Thyroid Support Supplement - Energy & Focus Formula

820103169035
Thyroid Support Supplement - Energy & Focus Formula Cover
1 Body Thyroid Support Supplement for Women and Men, Selenium with Iodine, Zinc, B12, Ashwagandha and L-Tyrosine, Supports Hormone Health, Energy and Metabolism, 30 Day Supply

Support healthy thyroid function and promote overall wellness with this non-GMO thyroid support supplement. The formula contains key nutrients such as iodine, vitamin B12 complex, zinc, selenium, ashwagandha, copper, coleus forskohlii and more, which work together to promote cognitive function, natural energy levels and healthy thyroid function. The supplement is manufactured in the USA, vegan-friendly and free from wheat, gluten, soy, milk, egg, fish, or tree nuts.

What We Like
Increased energy and alertness
Reduced hair loss
Improved mood and sleep
Decreased sugar cravings
Support for thyroid health

Pure Encapsulations Iodine Supplement 120 Capsules

Pure Encapsulations Iodine Supplement 120 Capsules Cover
Pure Encapsulations Iodine - Supplement to Support The Thyroid & Help Maintain Healthy Cellular Metabolism - with Premium Potassium Iodide - 120 Capsules

Pure Encapsulations Iodine supports your thyroid health by providing a pure iodine formula that helps maintain healthy cellular metabolism. This supplement aids your body in producing essential thyroid hormones, promoting balanced hormone levels for overall well-being. It also supports energy production in your cells, helping tissues and organs function efficiently. Made with high-quality ingredients from trusted sources, this product is carefully tested to ensure purity and potency. Plus, it is free from common allergens, artificial additives, and GMOs, making it a clean choice for those looking to support their thyroid naturally.

What We Like
High bioavailability
Easy absorption
Effective for thyroid support
Recommended by medical professionals
Positive lab result changes

Global Healing Detoxadine Organic Nascent Iodine Drops

KM-NU67-KZK0
1 Fl Oz (Pack of 1)
Global Healing Detoxadine Organic Nascent Iodine Drops Cover
Global Healing Center - Detoxadine - Organic Nascent Liquid Iodine Supplement Drops for Thyroid Support, Detox Cleanse, and Metabolism - Non-GMO, Vegan, 200 Servings Iodine Drops (1 Oz)

Global Healing Detoxadine is a non-GMO, vegan-friendly iodine supplement designed to provide thyroid support, consistent metabolism and energy, normal focus and sleep. The highly absorbable liquid formula is loaded with a gentle flavor of 650mcg of iodine and is set in a solution of certified organic vegetable glycerin. The supplement is manufactured in a state-of-the-art cGMP certified facility in the USA.

What We Like
Organic certified purity
Superior bioavailability
Flexible liquid dosing
Detoxification support
High therapeutic potency

MaryRuth's Iodine Liquid Drops

0856645008167
1 Fl Oz (Pack of 1)
MaryRuth's Iodine Liquid Drops Cover
MaryRuth Organics Iodine Liquid Drops | Potassium Iodide | 1 Year Supply | 450 Servings | Thyroid Health | USDA Organic| Vegan | Non-GMO | Gluten Free | 1 Fl Oz

MaryRuth's Iodine Liquid Drops is a USDA organic, vegan, and easy-to-take Iodine supplement that comes in liquid drops. The liquid drops are an excellent alternative to hard-to-swallow pills or capsules. The suggested serving contains more than the recommended daily value for adults, and the bottle comes with 450 servings. Iodine is essential for thyroid health, which regulates hormone production, plays an important role in metabolism, stimulates the immune system, and moderates the central nervous system. It is especially important for pregnant and nursing women and those on a vegan or vegetarian diet who are at risk of iodine deficiency.

What We Like
Improved energy and metabolism
No taste or odor
Organic and non-GMO
Gluten-free and easy to take

Nascent Iodine Supplement 400 Servings

THIO2
2 Fl Oz (Pack of 1)
Nascent Iodine Supplement 400 Servings Cover
Nascent Iodine Supplement 400 Servings, Glass Bottle, Vegan, 1800 mcg - 600 mcg per Drop - Pure, Clear Color - Supports Thyroid Health, Energy, Immunity & Metabolism (2 oz.)

Triquetra Health's Nascent Iodine Supplement is a high-quality liquid iodine source, with 600 mcg per drop and 400 servings per bottle. This ionic form of iodine is easily absorbed and utilized by the body, and supports thyroid health, energy, immunity, and metabolism. Sourced from ancient salt deposits, it is vegan, GMO-free, and has a pure, clear color. Produced in the USA in a GMP certified facility and 3rd party lab tested, it is the best value for a 1-year supply of iodine.

What We Like
Effective absorption and utilization at a cellular level
Supports thyroid health, energy, immunity, and metabolism
Large 1-year supply with 400 servings per bottle
Pure and concentrated Earth sourced iodine
Produced in a GMP certified facility in the USA
#TOP 7

Life Extension Sea-Iodine Supplement

01740
Off White
Life Extension Sea-Iodine Supplement Cover
Life Extension Sea-Iodine™, kelp and bladderwrack-derived Iodine, Supports Healthy Levels of This Essential Nutrient for Thyroid Health and Beyond, Non-GMO, Gluten-Free, Vegetarian, 60 Capsules

Life Extension Sea-Iodine Supplement is a thyroid health-promoting trace element essential for good health. It is a blend of organic marine algae that provides 1000 mcg of iodine without increasing salt intake. A healthy thyroid gland helps regulate metabolism and maintain healthy hormone levels. The product is non-GMO, gluten-free, and made in the USA with the finest raw ingredients. Life Extension Sea-Iodine Supplement is designed to support your healthy lifestyle.

What We Like
Improved energy and well-being
Easy dose adjustment
Supports healthy thyroid function
No adverse reactions for sensitive users
#TOP 8

Organic Iodine Supplement from Sea Vegetable Complex

TH_IO_Cap_250MCG
250 mcg
Organic Iodine Supplement from Sea Vegetable Complex Cover
Organic Iodine Supplement from Sea Vegetable Complex, Whole Food & Raw Form - Iodine Plus Trace Mineral Complex – Contains Purest Icelandic Sea Kelp, Irish Moss & Bladderwrack (250 mcg)

This iodine supplement is derived from the purest Icelandic seaweed and delivered in a whole food and raw form. The synergetic sea vegetable complex combines organic kelp, Irish moss, and bladderwrack, packed with minerals, vitamins, amino acids, and polysaccharides, which work together with iodine to provide a broad range of health benefits. Its essential mineral helps regulate thyroid function, metabolism, hormone regulation, immune response, and the central nervous system, preventing problems such as extreme fatigue, weight gain, and brittle hair, skin, and nails.

What We Like
Thyroid regulation support
Painful cyst reduction
Consistent product quality
Natural whole food ingredients
Improved hair, nails, skin

Life-flo Liquid Iodine Plus 150 mcg

B003TLXKI6
No Color
2 Fl Oz (Pack of 1)
Life-flo Liquid Iodine Plus 150 mcg Cover
Life-flo Iodine Plus Drops | 150 mcg Iodine Per Serving | Healthy Thyroid, Energy & Metabolism Support | Formulated for High Absorption | 2 fl oz

Life-flo Liquid Iodine Plus 150 mcg is a bioavailable liquid iodine supplement designed to support healthy thyroid function, metabolism, energy levels and more. Three drops provide 150mcg, or 100% the Recommended Daily Value of iodine, and are formulated with Iodine and Potassium Iodide for twice the thyroid support*. It is easy to consume and ideal for people who have trouble swallowing pills.

What We Like
Provides 100% the Recommended Daily Value of iodine per serving
Formulated with Iodine and Potassium Iodide for twice the thyroid support*
Designed for fast absorption and utilization by the body

Peak Performance Raw Whole Food Iodine Supplement

Peak Performance Raw Whole Food Iodine Supplement Cover
Raw Whole Food Iodine Supplement from Organic Kelp (Ascophyllum Nodosum) by Peak Performance. Potassium Iodide Support Tablets. for Metabolism, Energy, and Immune. 60 Vegan Capsules, Pills.

Peak Performance Raw Whole Food Iodine Supplement offers a potent source of iodine from raw kelp that is better digested and assimilated into the body. It is vegan formulated, free of gluten, GMOs, additives, preservatives, artificial colors, soy, and dairy. Additionally, it is manufactured under the highest quality GMP regulations and USA standards. Most importantly, it is 3rd party tested to ensure maximum potency, purity, and safety. The product supports thyroid function, immune system, and increases energy levels. Moreover, every purchase helps supply vitamins for 1 year to a child at risk of malnutrition through their partnership with the nonprofit Vitamin Angels.

What We Like
Supports thyroid function
Boosts energy levels
Improves mood and well-being
Easy to swallow capsules
Limited ingredients, no fillers
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What does iodine do for the metabolism?

Adding more iodine to your diet may help reverse the effects of a slow metabolism, as it can help your body make more thyroid hormones. Low iodine levels may slow your metabolism and encourage food to be stored as fat, rather than be burned as energy.

2. Can iodine supplements cause weight gain?

What happens if I take too much iodine? Taking high doses of iodine for long periods of time could change the way your thyroid gland works. This can lead to a wide range of different symptoms, such as weight gain. If you take iodine supplements, do not take too much as this could be harmful.

3. What type of iodine is best for thyroid?

Thorne Iodine and Tyrosine Its iodine supplement is designed to support thyroid health using a combination of 225 mcg of potassium iodide, or 150% of the RDI, and 500 mg of tyrosine — an amino acid your body uses to produce thyroid hormones ( 2 ).

4. What are the benefits of supplementing with iodine?

Iodine's most important role is to ensure proper thyroid function. It helps to regulate the production of the thyroid hormones thyroxine (T4) and triiodothyronine (T3). Getting enough iodine is essential for preventing low thyroid hormone production and hypothyroidism.

Editor's Notes

During our iodine supplement for metabolism support research, we found 24 iodine supplement for metabolism support products and shortlisted 10 quality products. We collected and analyzed 262,993 customer reviews through our big data system to write the iodine supplements for metabolism support list. We found that most customers choose iodine supplements for metabolism support with an average price of $18.94.

The iodine supplements for metabolism support are available for purchase. We have researched hundreds of brands and picked the top brands of iodine supplements for metabolism support, including Earth Harmony Naturals, 1 Body, Pure Encapsulations, Global Healing Center, MaryRuth Organics. The seller of top 1 product has received honest feedback from 830 consumers with an average rating of 4.8.

Written by
Elisa Drew Avatar

Elisa Drew is a really professional copywriter specializing in baby products with five years of experience working as a pediatrician once. She has published a series of baby books purchased by over thirty thousand people in the United States.