Best Iodine Supplements of 2025

Phoebe Cooper Avatar
Phoebe Cooper
Last Updated: 2 Feb 2025

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Iodine supplements are a type of dietary supplement that provide the body with an essential mineral that is necessary for proper thyroid function. Iodine is important for the production of thyroid hormones, which regulate metabolism and other important bodily functions. While iodine is found naturally in some foods, such as seafood and seaweed, it can be difficult to get enough through diet alone. Iodine supplements can help to ensure that individuals are getting the recommended daily amount of iodine, which can help to promote overall health and wellbeing.

At a Glance: Our Top Picks

Natural Dual-Form Iodine Supplement for Health Cover #TOP 1
Natural Dual-Form Iodine Supplement for Health
ftb score rating icon 9.8
Horbaach High Strength Iodine Supplement 500mcg Cover #TOP 2
Horbaach High Strength Iodine Supplement 500mcg
ftb score rating icon 9.7
Iodine Supplement 400mcg - 400 Vegan Tablets Cover #TOP 3
Iodine Supplement 400mcg - 400 Vegan Tablets
ftb score rating icon 9.5

Top 10 Iodine Supplements

#TOP 1

Natural Dual-Form Iodine Supplement for Health

30 ml (Pack of 1)
Natural Dual-Form Iodine Supplement for Health Cover
Natural Dual-Form Iodine : 100% Free and Unbound Iodine/Iodide Supplement. 675mcg (30ml) for Energy, Mood & Metabolism. Made in The UK.

The Nature Provides Iodine supplement offers a unique blend of iodine derived from sea kelp and ammonium iodide, ensuring excellent absorption for your body. With just three drops, you receive a potent dose of 675mcg, making it easy to incorporate into your daily routine. Its sweet, medicinal flavour allows you to mix it with water or juice, enhancing your experience. This formula supports thyroid health, metabolism, and hormone balance, contributing to overall well-being and energy levels.

What We Like
High bioavailability for better absorption
Easy to mix with drinks
Supports thyroid and metabolism
No artificial additives
Vegan-friendly and GMO-free

Horbaach High Strength Iodine Supplement 500mcg

HU45782
Horbaach High Strength Iodine Supplement 500mcg Cover
Iodine Supplement 500mcg | High Strength Potassium Iodide | 180 Vegan Tablets | by Horbaach

Horbaach Iodine Tablets offer a robust dose of 500µg of Iodine as Potassium Iodide, providing you with high strength support for your health needs. This expertly crafted formula ensures purity and potency, making it a reliable choice. You can enjoy the convenience of taking just two tablets daily, eliminating the hassle of monthly re-orders for three months of support. Additionally, these vegan tablets contain no artificial colours or preservatives, making them suitable for all adult men and women.

What We Like
High strength dosage
Convenient three-month supply
Vegan and additive-free
Expertly crafted formula
Produced to high quality standards

Iodine Supplement 400mcg - 400 Vegan Tablets

SS Sport Supplies
Iodine - 400mcg - 400t
Iodine Supplement 400mcg - 400 Vegan Tablets Cover
Iodine Supplement 400mcg (Over 1 Year Supply) - 400 Vegan Tablets - High Strength Natural Source of Iodine from Potassium Iodide - UK Made

The Iodine Supplement 400mcg offers a high-strength source of potassium iodide, providing you with 400mcg per tablet. With a generous supply of 400 tablets, you can easily support your thyroid health, nervous system, and cognitive function over the course of a year. These vegan and non-GMO tablets are a convenient alternative to messy liquid drops, ensuring you get your iodine in a simple format. Manufactured to high standards, these tablets are lab-tested and free from gluten, making them a reliable choice for your health needs.

What We Like
High strength potassium iodide
Over 1-year supply
Vegan and non-GMO
Convenient tablet form
Lab-tested quality

WeightWorld 400mcg Iodine Tablets - 365 Vegan

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Iodine
WeightWorld 400mcg Iodine Tablets - 365 Vegan Cover
Iodine Tablets 400mcg - 365 Vegan Tablets (1 Year Supply) - High Strength Potassium Iodide 400mcg - Non-GMO & Gluten-Free Iodine Supplement - Trace Mineral - High Potency Iodine Tablets - UK Made

The WeightWorld Iodine Tablets are a high-strength potassium iodide supplement, providing 400mcg of iodine per tablet to help you meet your body's iodine requirements. These tablets support normal thyroid function and contribute to overall wellbeing, including cognitive and nervous system health. With a year's supply in each bottle, you can easily incorporate them into your daily routine. Being vegan, non-GMO, and gluten-free, these tablets offer a convenient alternative to traditional liquid iodine supplements.

What We Like
High-strength 400mcg iodine
One-a-day for easy use
Vegan and gluten-free
365 tablets for a year

Organic Seaweed Iodine Supplement by Together Health

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Organic Seaweed Iodine Supplement by Together Health Cover
Organic Seaweed Iodine Supplement – Together Health – from Organic Seaweed – Natural Source of Iodine – Vegan Friendly – Made in The UK – 30 Vegecaps

The Together Seaweed Iodine supplement is crafted from 100% sustainably wild-harvested ascophyllum seaweed, ensuring a natural source of iodine. Packed with essential minerals and micronutrients, it aids in the metabolism of iodine, which is vital for your thyroid health and cognitive function. This supplement helps prevent iodine deficiency, promoting overall well-being. Additionally, it is free from artificial additives, giving you a pure and effective product that your body can easily absorb.

What We Like
Organic and natural ingredients
Supports thyroid health
Rich in essential nutrients
Free from allergens and additives
#TOP 6

Max Strength Iodine 150mcg Tablets for Thyroid Health

Max Strength Iodine 150mcg Tablets for Thyroid Health Cover
Iodine 150mcg 120 Tablets | Max Strength Potassium Iodide | Natural Source of Iodine from Potassium Iodide | Thyroid Supplement | Vegan UK Made | GMP Approved

Max Strength Iodine 150mcg Tablets are an excellent choice for those seeking a high-strength iodine supplement. Each tablet delivers 150μg of iodine from potassium iodide, supporting normal thyroid function and hormone production essential for growth and development. With 120 tablets in each pack, you enjoy long-lasting value, lasting up to four months. The compact, letterbox-friendly packaging is convenient for storage and travel, while the small and easy-to-swallow tablets ensure that everyone can benefit from this vital nutrient. Plus, they are vegan-friendly and free from common allergens.

What We Like
High strength iodine content
Long-lasting supply
Easy to swallow
Vegan and allergen-free

Liquid Nascent Iodine Drops for Thyroid Support

SMNutrition
60 ml (Pack of 1)
Liquid Nascent Iodine Drops for Thyroid Support Cover
Liquid Nascent Iodine Drops | Iodine Supplement for Thyroid, Energy & Metabolism Support | 2 Fl Oz | 500 Servings | Non-GMO, Vegan, Third-Party Tested, Highly Absorbable | 1100 mcg Per Serving

SMNutrition Iodine Drops provide a potent dose of iodine, essential for supporting your thyroid function and overall hormone balance. With 1,100 mcg per serving, these liquid drops ensure you receive adequate iodine, which can improve energy levels and metabolism. The highly absorbable formula means your body can utilise the iodine more effectively than solid supplements. Plus, with 500 servings in each bottle, you’ll enjoy a long-lasting supply that keeps you on track with your health goals.

What We Like
Highly absorbable liquid formula
Supports thyroid and metabolism
Long-lasting 500 servings
Non-GMO and vegan
Third-party tested for quality

Organic Iodine from Sea Kelp Capsules

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Organic Iodine from Sea Kelp Capsules Cover
Certified Organic Iodine from 500mg Sea Kelp Giving 385mcg Iodine per Capsule 256% RDA Contributes to Normal Thyroid Function

Earthier Iodine Capsules are a certified organic supplement sourced from seaweed harvested in the United Kingdom. These capsules provide a natural source of iodine, which is essential for normal cognitive function and energy metabolism. By supporting the functioning of the nervous system, they help you maintain mental clarity and overall well-being. Additionally, they contribute to the normal production of thyroid hormones, promoting a healthy thyroid function, which is vital for regulating various bodily processes.

What We Like
Certified organic ingredients
Supports thyroid function
Enhances cognitive function
No preservatives or fillers

Core Nutrition High Strength Iodine Drops

60 ml (Pack of 1)
Core Nutrition High Strength Iodine Drops Cover
Iodine Liquid Drops - Vegan - High Strength 600mcg per Serving - 400 Servings - 240,000mcg per 60ml Dropper Bottle - Liquid Iodine Solution for Fast Absorption - Made in UK by Core Nutrition

Core Nutrition Iodine Drops provide a high-strength, vegan-friendly solution for your iodine needs. With metabolic benefits, these drops help normalise thyroid hormone production and support overall thyroid function. You will also find they enhance skin maintenance and contribute to normal cognitive function, keeping your mind sharp. Additionally, by taking these drops in liquid form, you experience faster absorption, allowing you to enjoy their benefits sooner. Just three drops a day give you a year's supply of essential iodine.

What We Like
High-strength formula
Fast absorption rate
Vegan and gluten-free
Supports thyroid function
Improves cognitive function
#TOP 10

New Leaf Vegan Iodine Tablets for Thyroid Health

New Leaf Vegan Iodine Tablets for Thyroid Health Cover
Iodine Tablets 100% RI - Vegan High Strength 180 Tablets Iodine Supplements, Natural Source of Iodine from Potassium Iodide, 6 Month Supply, GMO Free, Made in UK by New Leaf

New Leaf Iodine Tablets are designed to support your thyroid health, which is vital for maintaining a healthy metabolism. Each tablet provides 150 mcg of potassium iodide, ensuring you meet your daily iodine needs effectively. This supplement also contributes to the normal functioning of your nervous system, helping you feel more balanced and alert. Furthermore, it supports cognitive function, which may enhance your memory and focus. With a six-month supply in each bottle, this product offers long-lasting support for your overall well-being.

What We Like
Supports thyroid function
Enhances cognitive performance
Vegan-friendly ingredients
High potency with six-month supply
Quality tested for safety
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is iodine used for?

Iodine is a mineral found in some foods. The body needs iodine to make thyroid hormones. These hormones control the body's metabolism and many other important functions. The body also needs thyroid hormones for proper bone and brain development during pregnancy and infancy.

2. What food is rich in iodine?

Iodine is found mainly in animal protein foods and sea vegetables, and to a lesser extent in fortified foods like breads, cereals, and milk.. Seaweed (nori, kelp, kombu, wakame)Fish, shellfish (cod, canned tuna, oysters, shrimp)Table salts labeled “iodized”Dairy (milk, cheese, yogurt)Eggs.Beef liver.Chicken.

3. Is iodine good for skin?

Iodine regulates skin moisture levels and aids in the healing of cuts and scars through cellular regeneration. Iodine also regulates the hormones responsible for acne breakouts.

4. Why do doctors use iodine?

Iodine is used to treat and prevent iodine deficiency and as an antiseptic. For iodine deficiency it can be given by mouth or injection into a muscle. As an antiseptic it may be used on wounds that are wet or to disinfect the skin before surgery.

Editor's Notes

During our iodine supplement research, we found 140 iodine supplement products and shortlisted 10 quality products. We collected and analyzed 18,745 customer reviews through our big data system to write the iodine supplements list. We found that most customers choose iodine supplements with an average price of £12.05.

The iodine supplements are available for purchase. We have researched hundreds of brands and picked the top brands of iodine supplements, including Nature Provides, SS Sport Supplies, WeightWorld, Together, Right Choice Supplements. The seller of top 1 product has received honest feedback from 251 consumers with an average rating of 4.7.

Written by
Phoebe Cooper Avatar

In 2000, Phoebe Cooper graduated from the University of London as a Pharmacist. She practiced as a Pharmacist for the better part of 2 decades. Phoebe says she has worked in the majority of health sectors and has sufficient accumulated knowledge and experience. In her practice, Phoebe published a series of eBooks, one of which is titled "Good Health Good Living."