Best Soy-Free Iodine Supplements of 2025

Phoebe Cooper Avatar
Phoebe Cooper
Last Updated: 2 Feb 2025

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For individuals with soy allergies or intolerances, finding iodine supplements that are free from soy can be a challenge. However, there are several soy-free iodine supplements available on the market that can provide the necessary daily dose of iodine without causing an allergic reaction. These supplements come in various forms, including tablets, capsules, and liquid drops, and can be taken to support thyroid function, boost energy levels, and improve overall health. If you are looking for a soy-free iodine supplement, it is advisable to consult with a healthcare professional to determine the appropriate dosage and to ensure that it is safe to take with any other medications or supplements you may be using.

At a Glance: Our Top Picks

MaryRuth Organics Iodine Liquid Drops 30ml Cover #TOP 1
MaryRuth Organics Iodine Liquid Drops 30ml
ftb score rating icon 9.8
Now Foods Kelp Capsules with Iodine Cover #TOP 2
Now Foods Kelp Capsules with Iodine
ftb score rating icon 9.7
Organic Seaweed Iodine Supplement by Together Health Cover #TOP 3
Organic Seaweed Iodine Supplement by Together Health
ftb score rating icon 9.5

Top 6 Soy-Free Iodine Supplements

MaryRuth Organics Iodine Liquid Drops 30ml

0856645008167
Zj4952
30 ml (Pack of 1)
MaryRuth Organics Iodine Liquid Drops 30ml Cover
MaryRuth Organics, Iodine Liquid Drops, Dietary Supplement, Unflavored, 30ml, Vegan, Gluten-Free, Soy-Free

MaryRuth Iodine Drops offer a high dosage of 125mcg of iodine in just one drop, helping you meet your daily requirements effortlessly. With good bioavailability, these drops ensure that your body can absorb the iodine effectively, making them suitable for a vegan diet. The quality of the product is assured, as it is tested in independent laboratories for purity. Additionally, the drops are free from gluten and unwanted additives, allowing you to supplement your diet without concerns about genetic engineering.

What We Like
High dosage of iodine
Good absorption
Tested for quality
Additive-free

Now Foods Kelp Capsules with Iodine

NOW
NOW-5280
80 g (Pack of 1)
Now Foods Kelp Capsules with Iodine Cover
Now Foods, Kelp, with Natural Iodine, High Dose, 1 Capsule Every 3 Days, 250 Vegan Capsules, Lab Tested, Gluten Free, Soy Free, Non GMO, Vegetarian

Now Foods Kelp is a high-dosage iodine supplement that provides 325mcg of iodine in just one capsule taken every three days. This convenient dosing schedule makes it easy for you to maintain your iodine levels without the need for daily supplements. The capsules are designed with good bioavailability, ensuring that your body can easily absorb the nutrients. Additionally, they are gluten-free and made without any unwanted additives, making them suitable for a vegan diet. Quality is assured, as the capsules are tested for purity by independent laboratories.

What We Like
High dosage for convenience
Good bioavailability
Gluten-free and vegan-friendly
Quality tested for purity

Organic Seaweed Iodine Supplement by Together Health

700132
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 4

Optimox Iodoral 12.5mg Vegan Tablets

OXC-0011
60 g (Pack of 1)
Optimox Iodoral 12.5mg Vegan Tablets Cover
Optimox, Iodoral 12,5mg, with Iodine and Potassium Iodide, Depot, 180 Vegan Tablets, Vegetarian, Gluten-Free, Soy-Free, Non-GMO

Optimox Iodoral Tablets provide a high-strength dose of 12.5mg of iodine and iodide in just one tablet every 125 days, offering great convenience. Their good bioavailability means you can easily absorb the nutrients, making them suitable for those following a vegan diet. Quality is assured as these tablets are tested for purity in independent laboratories, ensuring you receive a reliable product. Additionally, they contain no unwanted additives, being gluten-free and non-GMO, which is ideal for health-conscious consumers.

What We Like
High-strength dosage
Easy absorption
Quality tested
Gluten-free and non-GMO
#TOP 5

Optimox Iodoral 12.5mg Vegan Tablets

OXC-0010
30 g (Pack of 1)
Optimox Iodoral 12.5mg Vegan Tablets Cover
Optimox, Iodoral 12,5mg, with Iodine and Potassium Iodide, Depot, 90 Vegan Tablets, Vegetarian, Gluten Free, Soy Free, Non-GMO

Optimox Iodoral Tablets provide a high strength dose of 12.5mg of iodine and iodide in just one tablet every 125 days. This convenience means you can easily integrate it into your routine without frequent dosing. The good bioavailability ensures that your body can absorb the nutrients effectively, making it suitable for your vegan diet. Additionally, these tablets are of high quality, having undergone testing in independent laboratories for purity, giving you peace of mind about what you are consuming.

What We Like
High strength dosage
Easy absorption
Quality tested
Vegan and gluten-free
#TOP 6

Trace Minerals Ionic Iodine Drops 150mcg

TMR-0160-UK
59 ml (Pack of 1)
Trace Minerals Ionic Iodine Drops 150mcg Cover
Trace Minerals Research, Ionic Iodine, 150mcg Iodine per Daily Dose, 59ml, Vegetarian, Gluten Free, SOYA Free, GMO Free

Trace Minerals Ionic Iodine provides 150mcg of iodine per two drops, allowing you to easily meet your daily iodine needs. Its good bioavailability ensures that your body can effectively absorb the nutrients, making it suitable for a vegan diet. Each bottle is tested in independent laboratories, so you can trust in its quality and purity. Additionally, this product is gluten-free, soy-free, and free from genetic engineering, giving you peace of mind regarding unwanted additives.

What We Like
High dosage of iodine
Good for vegan diets
Lab-tested for quality
No unwanted additives
Buying Guide Image
Editor's Notes

During our soy-free iodine supplement research, we found 46 soy-free iodine supplement products and shortlisted 6 quality products. We collected and analyzed 86,510 customer reviews through our big data system to write the soy-free iodine supplements list. We found that most customers choose soy-free iodine supplements with an average price of £16.81.

The soy-free iodine supplements are available for purchase. We have researched hundreds of brands and picked the top brands of soy-free iodine supplements, including MaryRuth Organics, NOW, Together, Optimox, Trace Minerals. The seller of top 1 product has received honest feedback from 635 consumers with an average rating of 4.9.

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."