Best Iodine Supplement Capsules of 2025

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.

Health4All Sea Kelp Iodine offers a natural source of iodine, essential for maintaining a healthy metabolism and thyroid function. Each capsule contains 520mcg of iodine derived from pure Sea Kelp, ensuring you receive the exact amount needed for optimal health. The capsules are made from vegetable cellulose, making them suitable for both vegetarians and vegans. Additionally, they are manufactured in the UK under strict GMP standards, providing peace of mind regarding quality and safety.

Natures Zest Iodine Capsules are designed to support your thyroid health with a potent dose of 300μg of iodine per serving. This high strength formula helps maintain normal hormone production, ensuring your thyroid functions effectively. Each easy-to-take capsule is vegan-friendly and free from unwanted additives, making it a convenient option for those with dietary restrictions. Additionally, iodine plays a crucial role in overall well-being, contributing to healthy skin and efficient energy metabolism.

Naturally Natural Iodine offers a potent source of iodine from sea kelp, with each capsule containing a precise 520mcg. This product is formulated without any bulking agents, ensuring you receive the purest form of supplementation. The premium quality materials used are pharmaceutical grade and free from GMOs and allergens, making it suitable for various dietary needs, including vegan and halal. For those who struggle with swallowing pills, the capsules can be opened and mixed with your favourite drink for easy consumption.

This Pure Encapsulations Iodine supplement provides 225 micrograms of iodine per vegetarian capsule, aiding in optimal iodine intake for your diet. Iodine is essential for maintaining normal cognitive function and supporting your nervous system. Additionally, it contributes to energy-yielding metabolism and skin health, helping you feel revitalised. It also plays a crucial role in the production of thyroid hormones, ensuring your thyroid functions normally. You only need to take one capsule daily with a meal for the best results.

Sensilab ThyroLux is a comprehensive thyroid support supplement that combines iodine and selenium, two key nutrients essential for normal thyroid function. Enhanced with manganese, it helps protect your thyroid gland and liver from oxidative stress while supporting energy production. Additionally, zinc is included for its role in cognitive function and cell protection. With a high concentration of natural ingredients, this product is hormone-free, making it a safe option for everyone, including those with dietary restrictions.

Lugols Iodine Capsules are designed to support your thyroid function, providing 500mcg of elemental iodine per capsule. Made by Health Leads, a family-run company in Wales, these capsules are free from nasty additives, ensuring you consume only premium quality ingredients. With no magnesium stearate or artificial preservatives, you can enjoy effective absorption without any unwanted extras. Plus, the small size makes them easy to swallow, offering a convenient way to maintain your iodine levels.

The Vegavero Iodine Supplement is designed to support your thyroid health, as iodine is essential for proper thyroid function and hormone production. Made from natural organic Scottish sea kelp, these capsules offer a rich source of iodine that is easily absorbed by your body. Each capsule provides 150μg of iodine, making it suitable for both men and women. Additionally, this supplement is free from additives and pesticides, ensuring you receive a pure product that aligns with your vegan lifestyle.

Seagreens Iodine+ Capsules offer high-quality seaweed that provides naturally occurring iodine in a whole food form. Being 100% pure and vegan, these capsules are free from additives, fillers, allergens, and GMO, ensuring a safe supplement for your diet. The rich nutrient source is easily absorbed by your body, promoting overall health. These capsules are suitable for adults, the elderly, vegans, vegetarians, and even children at a half dose, making them a versatile addition to your daily nutrition routine.

The Ezyleaf Iodine Supplement provides a valuable daily intake of essential nutrients. Each capsule contains beneficial ingredients like Sea Kelp, Irish Sea Moss, Bladderwrack, and Potassium Iodide, ensuring you receive a nutrient-rich source of iodine. With 90 vegan capsules in each bottle, you enjoy a three-month supply, making it a convenient choice for maintaining your health. This supplement is also gluten and dairy free, catering to various dietary preferences, so you can feel confident in your choice.