Top Iodine Supplement Brands: Pure Encapsulations, NOW Foods, Life Extension, Thorne Research, and Global Healing Center.

Ensuring adequate iodine intake is crucial for maintaining optimal thyroid function and overall health. With a plethora of brands available, choosing the best iodine supplement can be overwhelming. This article aims to simplify your decision-making process by highlighting the top brands known for their quality and efficacy in iodine supplementation. Discover the best options to meet your nutritional needs in the sections below.

Illustration of iodine supplement

Best brands of iodine supplement in 2025

Pure Encapsulations

Pure Encapsulations is a renowned brand for iodine supplements, offering high-quality products that support thyroid health and overall metabolic function. Their iodine supplements, such as Iodine (Potassium Iodide), contain 225 mcg of iodine per capsule, which is essential for the formation of thyroid hormones and promoting cellular metabolism. With over 30 years of research and development, Pure Encapsulations ensures their products are made with pure, hypoallergenic ingredients, making them suitable for vegan and vegetarian diets. The supplements are designed to be taken 1-2 times daily with meals, and they come in containers of 120 capsules. This brand is trusted for its commitment to using verifiable science and high-quality ingredients.

Thorne Research

Thorne Research is a leading brand in the production of high-quality iodine supplements, recognized for its innovative and science-backed approach to health and wellness. The company has seen significant growth, with a 27.7% year-over-year increase in net sales to $63.0 million in the fourth quarter of 2022, and a 46.1% growth in direct-to-consumer sales. Thorne Research is included among the top market leaders in the global thyroid care supplement market, which is expected to hit USD 1,702.3 million by 2034, growing at a CAGR of 6.7%. Their products are designed to support general thyroid health, hypothyroidism, and hyperthyroidism, and are available in various forms such as tablets, capsules, and powders. Thorne's commitment to innovation and consumer trust has earned it recognition as one of the most innovative companies in wellness.

NOW Foods

NOW Foods is renowned as one of the best producers of iodine supplements, particularly with their Potassium Plus Iodine product, which provides 225 mcg of iodine per serving, meeting 150% of the daily recommended value. This supplement supports healthy thyroid function and electrolyte balance, making it a popular choice among users. The product is free from common allergens like yeast, wheat, gluten, soy, and milk, and is manufactured in a GMP facility. Users have reported improvements in thyroid function, electrolyte balance, and overall well-being. With 180 tablets per container, it offers a convenient and long-lasting supply.

Nature's Way

Nature's Way is renowned as one of the top producers of iodine supplements, particularly through their kelp products, which are rich in natural iodine. These supplements are popular for their vegan-friendly formulation and high bioavailability, making them a preferred choice for those seeking to address iodine deficiency. The brand's commitment to quality and purity has earned it a significant market share, especially among health-conscious consumers. For instance, their kelp capsules are often recommended for their ease of absorption and effectiveness in maintaining thyroid health. With ongoing public health initiatives to combat iodine deficiency, Nature's Way continues to be a trusted name in the supplement industry.

Jarrow Formulas

Jarrow Formulas is a renowned brand in the nutritional supplement industry, particularly noted for its high-quality iodine supplements. The company offers a range of products that ensure purity, value, and potency, catering to the growing demand for thyroid care supplements. With the global thyroid care supplements market projected to grow at a 6.7% CAGR from 2024 to 2034, Jarrow Formulas is well-positioned to meet the increasing need for iodine-rich products, especially as consumers become more health-oriented and inclined towards natural and preventive health solutions. Their products often include iodine from marine sources, aligning with the trend towards clean-label and nature-based health management. As iodine intake remains crucial, especially for pregnant women who require at least 150 mcg per day, Jarrow Formulas' supplements are designed to meet these nutritional needs effectively.

Global Healing Center

Global Healing Center is renowned for its high-quality iodine supplements, particularly Detoxadine, which is a certified organic nascent iodine product sourced from 300-million-year-old salt deposits over 7,000 feet below the earth's surface. Each drop of Detoxadine provides 650 micrograms of iodine, ensuring rapid and gentle absorption. This supplement supports thyroid health, hormone balance, and metabolism, and is free from additives, fillers, and preservatives. With a six-month supply in each bottle, Detoxadine is a premium choice for those seeking to enhance their thyroid function and overall well-being. Its unique formulation and purity make it an excellent option for those looking to fill nutritional gaps and protect against harmful contaminants.

Life Extension

Life Extension is renowned for producing high-quality iodine supplements, such as their Vitamin D3 with Sea-Iodine(tm) and Vitamins D and K with Sea-Iodine(tm) formulas. These supplements provide 1000 mcg of iodine per capsule, which is essential for supporting thyroid hormone production and counteracting iodine deficiencies in modern diets. The formulas also include 125 mcg (5000 IU) of vitamin D3, crucial for bone, immune, and cognitive health. Life Extension recommends doses ranging from 1000 to 7000 IU of vitamin D3 depending on individual blood levels, ensuring personalized health support. Their products are made with the highest quality standards, as endorsed by Dr. Michael A. Smith, MD.

Dr. Mercola

Dr. Mercola's brand is renowned for producing high-quality iodine supplements, adhering to the strictest standards for purity and potency. Their iodine supplements, such as those from potassium iodide, provide 1,500 mcg per capsule, which is 1,000% of the daily recommended intake. These supplements support healthy thyroid function, bone and brain health, and normal detoxification processes. Dr. Mercola's products are made with the highest-grade ingredients and use advanced techniques like liposomal capsulation to ensure maximum absorption. This commitment to quality has made Dr. Mercola a trusted name in the health supplement industry.

MaryRuth Organics

MaryRuth's Organics is a highly regarded brand for iodine supplements, offering USDA Organic, Non-GMO, and vegan-friendly products. Their Organic Iodine Liquid Drops provide 250 mcg of iodine per serving, which is 167% of the daily recommended value, making them an effective choice for thyroid health and metabolic support. These drops are formulated in a water base with organic vegetable glycerin and purified water, ensuring they are easy to take and suitable for various lifestyles, including ketogenic, celiac, and bariatric diets. With 450 servings per bottle, this product is both convenient and long-lasting. It is crucial to consult with a healthcare professional to determine the right iodine intake, especially for individuals with specific dietary needs or health conditions.

Solaray

Solaray is a renowned brand in the supplement industry, particularly esteemed for its high-quality iodine supplements. Founded in 1973, Solaray has built a strong reputation by offering over 900 vitamins, minerals, and supplements, including its potent Iodine (as Potassium Iodine) 500mcg supplement, which supports healthy thyroid function and metabolism. Each serving is non-GMO, vegan, and rigorously lab-tested for purity and potency. Solaray's commitment to innovation and quality has led to significant growth, such as a 15% year-over-year increase in Amazon sales. The brand's dedication to sustainability is also notable, with initiatives like using post-consumer recycled resin for packaging and installing solar panels at their facilities.