10 Best iodine supplements of 2025

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1

Clean Nutraceuticals
Clean Nutra Selenium 300mcg Iodine 500mcg Thyroid Support for Women & Men | L Tyrosine 500mg Ashwagandha Supplement Bladderwrack, Turmeric, Kelp, Schisandra Zinc Pills Capsule Supplements

14% Off
Main highlights

Comprehensive Thyroid Support
Combines selenium, zinc, iodine, tyrosine, and ashwagandha for enhanced thyroid health.

Ideal for Stress and Energy
Perfect for those seeking relaxation and energy boost.

Praised for Convenience
Customers appreciate the all-in-one two-capsule solution.
Key specs
- Key Ingredients:Selenium, Potassium Iodide, Zinc
- Formulation:Capsules
- Product Dimensions:3.7 x 1.91 x 1.89 inches
- Dietary Needs:N/A
- Serving Size:2 capsules
9.7

Exceptional

Our Rating
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Value for Money

2

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

Thyroid and Metabolism Support
Pure iodine capsules support thyroid health and maintain cellular metabolism.

Ideal for Iodine Deficiency
Perfect for individuals with low iodine intake or dietary restrictions.

Increased Energy Levels
Customers praise noticeable improvements in energy and warmth.
Key specs
- Key Ingredients:Iodine
- Formulation:Capsules
- Product Dimensions:3.3 x 2 x 1.8 inches
- Dietary Needs:Free from allergens
- Serving Size:N/A
9.5

Excellent

Our Rating

9.9
simple to consume

9.5
Flavor

9.1
worth the money
3

Carlyle
Carlyle Sea Kelp Iodine Supplement | 225mcg | 300 Tablets | Non-GMO, Gluten Free | Traditional Herb Supplement

14% Off
Main highlights

Powerful Iodine Source
Delivers 225 mcg of iodine from sea kelp, supporting thyroid health.

Versatile Health Supplement
Ideal for anyone seeking to boost iodine intake naturally.

Great Value and Quality
Praised for cost-effectiveness and ease of use by customers.
Key specs
- Form:Tablet
- Source:Kelp
- Iodine Content:225 mcg
- Organic:N/A
- Serving Size:1 tablet
9.3

Excellent

Our Rating

9.7
simple to consume

9.3
Flavor

9.3
worth the money
4

Life Extension
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

25% Off
Main highlights

Supports Thyroid Health
Life Extension Sea-Iodine aids thyroid function, metabolism, and energy by supporting T3 and T4 hormone production.

Ideal for Iodine Deficiency
Perfect for individuals avoiding salt or seeking non-synthetic iodine sources.

Praised for Energy Boost
Customers frequently commend its ability to enhance energy and mental clarity.
9.0

Excellent

Our Rating

9.7
simple to consume

9.3
worth the money

9.1
Flavor
5

NOW Foods
NOW Supplements, Kelp 150 mcg of Natural Iodine, Easier to Swallow Tablet, Super Green, 200 Tablets

33% Off
Main highlights

Key Features
150 mcg of natural iodine from kelp supports healthy thyroid function. GMP Quality Assured and packaged in the USA.

Ideal Use Cases
Perfect for those seeking a natural thyroid health boost and an essential staple for fans of Chinese, Japanese, and Korean cuisines.

Customer Praise
Most reviews highlight the ease of swallowing these tablets and the noticeable improvement in thyroid function and overall energy levels.
8.9

Very Good

Our Rating

9.1
simple to consume

9.1
Flavor

8.7
worth the money
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6

J. CROW'S
J.CROW'S® Lugol's Solution of Iodine 2% 2 oz (1 Bottle) – Premium Iodine & Potassium Iodide Liquid, Gluten &, Alcohol-Free Natural Brine Extract, No Expiration
Main highlights

High-Quality Natural Source
Derived from 320-million-year-old brine deposits, ensuring purity.

Versatile Use Cases
Ideal for dietary supplementation and external applications.

Trusted Traditional Formula
Praised for its long-standing reliability and effectiveness.
8.7

Very Good

Our Rating
7

365 by Whole Foods Market

365 by Whole Foods Market, Liquid Iodine with Kelp, 2 OZ
8.6

Very Good

Our Rating
8

Earth Harmony Naturals
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)

16% Off
Main highlights

Thyroid and Metabolism Support
Organic Lugols Iodine helps maintain healthy thyroid and metabolism, boosting energy and cognitive function.

Ideal for Hormonal Balance
Perfect for managing thyroid-related symptoms and supporting hormone levels, suitable for both men and women.

Praised for Energy Boost
Customers consistently highlight increased energy and reduced fatigue as major benefits.
8.5

Good

Our Rating
9

Triquetra Health
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)
Main highlights

Organic Iodine Supplement
100% organic iodine from whole food and raw form.

Ideal for Thyroid Support
Helps regulate thyroid function and hormone balance.

Natural Source Praised
Customers appreciate the natural seaweed-derived iodine source.
Key specs
- Form:Whole food and raw
- Source:Icelandic seaweed
- Iodine Content:100% organic iodine
- Organic:Yes
- Serving Size:N/A
8.2

Good

Our Rating

9.9
worth the money

9.3
simple to consume

9.3
Absorbency
10

Nutricost
Nutricost Iodine (Natural Iodine from Sea Kelp) 325mcg, 240 Tablets - Non-GMO, Gluten Free
Main highlights

Natural Iodine Source
Provides 325mcg of iodine per tablet from sea kelp.

Ideal for Thyroid Support
Suitable for improving thyroid enzyme levels and general wellness.

Easy to Swallow
Praised for its small, lentil-sized tablets that are easy to take.
Key specs
- Form:Tablet
- Source:Sea Kelp
- Iodine Content:325mcg
- Organic:Non-GMO
- Serving Size:N/A
8.1

Good

Our Rating

9.9
simple to consume

9.7
quality of ingredients

8.0
Flavor

10 Best iodine supplements of 2025

1

Clean Nutra Selenium 300mcg Iodine 500mcg Thyroid Support for Women & Men | L Tyrosine 500mg Ashwagandha Supplement Bladderwrack, Turmeric, Kelp, Schisandra Zinc Pills Capsule Supplements

How do we rank?

How do we rank?

Analyzing top stores

2

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

9.9

9.5

9.1

3

Carlyle Sea Kelp Iodine Supplement | 225mcg | 300 Tablets | Non-GMO, Gluten Free | Traditional Herb Supplement

9.7

9.3

9.3

4

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

9.7

9.3

9.1

5

NOW Supplements, Kelp 150 mcg of Natural Iodine, Easier to Swallow Tablet, Super Green, 200 Tablets

9.1

9.1

8.7

6

J.CROW'S® Lugol's Solution of Iodine 2% 2 oz (1 Bottle) – Premium Iodine & Potassium Iodide Liquid, Gluten &, Alcohol-Free Natural Brine Extract, No Expiration

7

365 by Whole Foods Market, Liquid Iodine with Kelp, 2 OZ

8

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)

9

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)

9.9

9.3

9.3

10

Nutricost Iodine (Natural Iodine from Sea Kelp) 325mcg, 240 Tablets - Non-GMO, Gluten Free

9.9

9.7

8.0

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