Best Gluten-Free Iodine Supplements of 2025

Elisa Drew Avatar
Elisa Drew
Last Updated: Jan 6, 2025

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Gluten-free iodine supplements are an essential source of iodine for those with gluten sensitivities or celiac disease. Iodine is a vital mineral that supports thyroid health, hormone balance, and cognitive function. These supplements are made without the use of gluten-containing ingredients and are suitable for those following a gluten-free lifestyle. They come in various forms, including capsules, tablets, and drops, and are available in different dosages to meet individual needs. It is important to consult a healthcare professional before taking any new supplement, especially if you have a medical condition or are taking medication.

At a Glance: Our Top Picks

Sea Kelp Iodine | 225mcg | 500 Tablets | by Carlyle Cover #TOP 1
Sea Kelp Iodine | 225mcg | 500 Tablets | by Carlyle
ftb score rating icon 9.9
MaryRuth's Iodine Liquid Drops Cover #TOP 2
MaryRuth's Iodine Liquid Drops
ftb score rating icon 9.8
Nutricost Iodine Supplement 325mcg, 240 Tablets Cover #TOP 3
Nutricost Iodine Supplement 325mcg, 240 Tablets
ftb score rating icon 9.6

Top 10 Gluten-Free Iodine Supplements

Sea Kelp Iodine | 225mcg | 500 Tablets | by Carlyle

CL1775
Sea Kelp Iodine | 225mcg | 500 Tablets | by Carlyle Cover
Carlyle Sea Kelp Iodine Supplement | 225mcg | 300 Tablets | Non-GMO, Gluten Free | Traditional Herb Supplement

Carlyle Sea Kelp Iodine is a traditional herb supplement that delivers 225mcg of iodine per tablet from green seaweed, providing 150% of your daily value to support your overall wellness. The product is non-GMO, gluten-free, and free from artificial flavor, sweetener, and preservatives. Carlyle, a trusted manufacturer of premium supplements, ensures superior quality and guarantees 100% satisfaction.

What We Like
Provides powerful support with 225mcg of iodine per tablet
Non-GMO, gluten-free, and free from artificial flavor, sweetener, and preservatives
Manufactured by a trusted brand that ensures superior quality and customer satisfaction

MaryRuth's Iodine Liquid Drops

0856645008167
Zj4952
1 Fl Oz (Pack of 1)
MaryRuth's Iodine Liquid Drops Cover
Organic Iodine Liquid Drops by MaryRuth's | Potassium Iodide | Iodine Supplement | 1 Year Supply | 450 Servings | Thryroid 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
USDA organic and vegan formula
Easy-to-take liquid drops
Supports thyroid health and immune system
Free of allergens and made in a GMP facility
#TOP 3

Nutricost Iodine Supplement 325mcg, 240 Tablets

NTC379101
Nutricost Iodine Supplement 325mcg, 240 Tablets Cover
Nutricost Iodine (Natural Iodine from Sea Kelp) 325mcg, 240 Tablets - Non-GMO, Gluten Free

The Nutricost Iodine Supplement provides 325mcg of natural iodine sourced from sea kelp in each of its 240 easy-to-swallow tablets. It is a non-GMO, gluten-free and vegetarian-friendly product that is manufactured in a GMP compliant facility. This iodine supplement is ideal for individuals who need iodine supplementation to support thyroid function, hormone balance, and other bodily processes.

What We Like
Contains natural iodine sourced from sea kelp
Easy-to-swallow tablets
Non-GMO, gluten-free and vegetarian-friendly
#TOP 4

Carlyle Organic Nascent Iodine Liquid Drops: Optimal and Honest Supplement for Your Wellness

CL18471
2 Fl Oz (Pack of 1)
Carlyle Organic Nascent Iodine Liquid Drops: Optimal and Honest Supplement for Your Wellness Cover
Carlyle Organic Nascent Iodine Liquid Drops | 2 fl oz | Vegan Supplement | Non-GMO, Gluten Free

Carlyle Organic Nascent Iodine Liquid Drops is the perfect supplement for your healthy lifestyle. It contains 325 mcg of Iodine in two liquid drops, which is 217% of your daily value. This optimally absorbed form of Iodine is one of the body's many important trace minerals. Carlyle is rooted in wellness and provides premium, honest supplements. The product is vegan, non-GMO, gluten-free, and organic. Carlyle Manufacturers ensure laboratory-tested, trusted ingredients, superior quality, and 100% guaranteed!

What We Like
Optimally absorbed form of Iodine
Provides 217% of daily value of Iodine in two liquid drops
Rooted in wellness, premium, and honest supplements
Vegan, non-GMO, gluten-free, and organic
Laboratory tested, trusted ingredients, superior quality, and 100% guaranteed
#TOP 5

Nutricost Kelp Tablets, 325mcg of Iodine, 240 Tablets

NTC360101
Nutricost Kelp Tablets, 325mcg of Iodine, 240 Tablets Cover
Nutricost Kelp Tablets, 325mcg of Iodine, 240 Tablets - Non-GMO, Gluten Free

Nutricost Kelp Tablets are a natural source of iodine, made with sea greens. Each tablet contains 325mcg of iodine from sea kelp. With 240 easy-to-swallow tablets, this product provides a convenient way to supplement your iodine intake. It is non-GMO, gluten-free, and vegetarian-friendly, making it suitable for various dietary preferences. The tablets are made in a GMP compliant facility, ensuring high quality and safety. By incorporating Nutricost Kelp Tablets into your daily routine, you can support your iodine levels, which play a crucial role in maintaining thyroid health and overall well-being.

What We Like
Natural source of iodine
Easy-to-swallow tablets
Non-GMO and gluten-free

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
Helps reduce thyroid vascularity
Assists in maintaining consistent metabolism and energy levels
Improves cognitive performance
The highest quality ingredients
Love It or Return It Guarantee
#TOP 7

Horbäach Nascent Iodine Supplement

CL18472
4 Fl Oz (Pack of 1)
Horbäach Nascent Iodine Supplement Cover
Horbäach Nascent Iodine | 325mcg | 4oz | Organic Liquid Supplement | Vegan, Non-GMO & Gluten Free Vitamin

Horbäach Iodine Drops offer a highly effective form of iodine, a vital trace mineral for your body. Each serving delivers 325 mcg of iodine, fulfilling 217% of your daily requirement in convenient liquid drops. This organic formula is expertly crafted to ensure purity and potency, so you can trust that you’re getting a quality supplement. Additionally, Horbäach prioritizes your health by ensuring their products are free from gluten, yeast, and artificial additives, making it a safe choice for various dietary needs.

What We Like
High potency iodine source
Organic and vegan-friendly
Free from common allergens
Laboratory tested for quality

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
Potent source of iodine from raw kelp
Vegan formulated and free of harmful additives
Manufactured under high-quality GMP regulations and 3rd party tested
Supports thyroid function, immune system, and increases energy levels
Every purchase helps supply vitamins for 1 year to a child at risk of malnutrition through their partnership with the nonprofit Vitamin Angels
#TOP 9

Carlyle Liquid Iodine Drops 4 fl oz

CL14692
Carlyle Liquid Iodine Drops 4 fl oz Cover
Carlyle Liquid Iodine Drops 4 fl oz | 150 mcg | Iodine & Potassium Iodide Supplement | Vegetarian Liquid Tincture | Non-GMO, Gluten Free

Carlyle Iodine Drops provide a convenient way to boost your iodine intake, delivering 150 mcg per serving. This vegetarian-friendly liquid formula is perfect for those following a plant-based diet, ensuring you can maintain your lifestyle while supporting your health. Carlyle is dedicated to wellness, offering high-quality supplements that you can trust. Each bottle is laboratory tested for superior quality, so you can feel confident about what you're consuming. With a commitment to clean ingredients, these drops are free from gluten, artificial sweeteners, and preservatives, making them a safe choice for your health journey.

What We Like
High iodine content
Vegetarian-friendly formula
Laboratory tested quality
Non-GMO ingredients
#TOP 10

Piping Rock Organic Iodine Drops

Piping Rock
18470
2 Fl Oz (Pack of 1)
Piping Rock Organic Iodine Drops Cover
Piping Rock Nascent Iodine Drops Organic | 2 fl oz | Liquid Vegan Supplement | Non-GMO, Gluten Free

Piping Rock Iodine Drops are a convenient liquid supplement designed to support your thyroid health. Made with organic ingredients, these drops ensure you are getting pure iodine without any harmful additives. They are also non-GMO and gluten-free, making them a safe choice for vegans and those with gluten sensitivities. The liquid form allows for easy dosing, ensuring that you can absorb the nutrients efficiently. With these drops, you can help maintain your metabolism and overall well-being with minimal effort.

What We Like
Organic ingredients for purity
Non-GMO and gluten-free
Easy liquid dosing
Supports thyroid function
Buying Guide Image

Frequently Asked Questions (FAQs)

1. 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 ).

2. Who should not use iodine?

Thyroid disorders: Prolonged use or high doses of iodine might make certain thyroid disorders worse, including hypothyroidism, an enlarged thyroid gland (goiter), or a thyroid tumor. Also, people with autoimmune thyroid disease might be especially sensitive to the harmful effects of iodine.

3. Should you avoid iodine with Hashimoto's?

Should people with thyroid problems avoid these supplements? Iodine: Yes. Avoid it as a supplement whether you have hyperthyroidism or hypothyroidism. The effect of iodine supplements can vary by person, causing the thyroid to produce either too much or too little hormone.

4. Is potassium iodide the same as iodine?

Potassium iodide (KI) is the same form of iodine used to iodize table salt. KI floods the thyroid with iodine, thus preventing radioactive iodine from being absorbed. If taken at the proper time, KI protects the thyroid from radioactive iodine from all sources – air, food, milk, and water.

Editor's Notes

During our gluten-free iodine supplement research, we found 24 gluten-free iodine supplement products and shortlisted 10 quality products. We collected and analyzed 84,394 customer reviews through our big data system to write the gluten-free iodine supplements list. We found that most customers choose gluten-free iodine supplements with an average price of $19.39.

The gluten-free iodine supplements are available for purchase. We have researched hundreds of brands and picked the top brands of gluten-free iodine supplements, including Carlyle, MaryRuth Organics, Nutricost, Earth Harmony Naturals, Peak Performance. The seller of top 1 product has received honest feedback from 42,447 consumers with an average rating of 4.9.

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.