Best Iodine Supplements Reviewed & Rated

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In a Hurry? Editors choice:
1. Detoxadine – Nascent Iodine
Test Winner: 1. Detoxadine – Nascent Iodine

Did you know that iodine deficiency was the biggest cause of brain damage in the year 1990? Before the manufacture of the best iodine supplement, more than 30% of the world’s population at that time were lacking in iodine, which is an irony. Iodine is a nutrient that can be found in saltwater organisms and iodized salt, items that are both very easy to find and cheap to procure, yet, in the year 1990, there was still a huge rate of individuals lacking it.

Today, this micronutrient is well known for its importance in retaining our vitality throughout our growth stages. From when we are still an embryo in our mother’s womb until we are old and wrinkly, the consumption of iodine helps in our metabolism. But still, today, according to the World Health Organization, iodine deficiency is the biggest cause of brain damage. (1)

The importance of iodine in making thyroid hormones that control the body’s reactions is just one of many reasons why everyone should seek the right iodine supplement to be added to their diet. It is not that iodine cannot be gotten from our daily meals, but that the quantity we consume is not substantial enough to gain the desired benefits.

Detoxadine
  • Detoxadine
  • 4.9 out of 5
    Our rating
  • Natural Iodine
  • Price: See Here
Go Nutrients
  • Go Nutrients
  • 4.5 out of 5
    Our rating
  • Potent Formula
  • Price: See Here
J. CROW'S – 2%
  • J. CROW'S – 2%
  • 4.2 out of 5
    Our rating
  • Great Value
  • Price: See Here

Below you can find reviews of the best iodine supplements with adequate scientific references and reliable research conclusions to help you decide on which one is best for you.

We deliberately chose different forms of iodine supplements so as to give a broad overview of the varied possibilities. These iodine supplements can be used for thyroid support as well as to prevent iodine deficiency.

10 Best Iodine Supplements

1. Detoxadine – Nascent Iodine

1. Detoxadine – Nascent Iodine
Detoxadine is available in the form of nascent iodine. The recommended dosage for this brand is 3 drops a day, which is equal to 1,950 micrograms (mcg) of iodine. Detoxadine provides a sufficient amount of iodine for use according to the daily recommended serving. However, you may not feel the 'instant' results as quick as Go Nutrients or Lugol's Solution, which are also reviewed in this article. Detoxadine still gives above the minimum daily recommended allowance (RDA) and you will still experience the benefits one way or another.
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The source of the iodine in Detoxadine is said to be 300 million-year-old salt deposits located more than 7,000 feet below the earth’s surface. It is natural, pure, nascent iodine that is free of both additives and toxins, which is very important for safety and iodine purity, as some other sources can be toxic to the body.

The advantage of the Detoxadine supplement is the use of vegetable glycerin solution to hold the nascent iodine. The use of glycerin separates this brand from other manufacturers, who make use of alcohol that can cause irritation to the digestive system, mouth burning, or other reactions in the body when consumed. The glycerin solution makes it easier to consume.

The iodine supplement has a Detoxadine formula which is vegan, GMO-free, and gluten-free. The taste is probably the most problematic thing. While the label on the package still suggests that consumers just take it directly by mouth, we will strongly suggest you dissolve it in juice or dilute it in water and drink it immediately (because it will lose power when left too long after dissolved).

Pros
  • Certified USP-grade iodine
  • Vegetable glycerin
  • Vegan
  • GMO-free and Gluten-free
  • Sourced from salt deposits deep underground
  • Great value for your money
Cons
  • Taste may be unpleasant to some due to the source of iodine being salt

2. Go Nutrients – Iodine Edge

2. Go Nutrients – Iodine Edge
Iodine Edge by Go Nutrients is another iodine supplement sold in nascent iodine form. With 6 drops a day that can be taken in any preferred form, you can increase your iodine intake without putting much effort into trying to remember when you should take your supplement – why? Go Nutrients provides a high amount of iodine in their serving – more than 2,500 mcg.
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A major plus of this iodine supplement is that it does not contain any trace of potassium iodide, which is a low-grade, less bio-available form of iodine. Like Detoxadine, Iodine Edge is said to be sourced from salt solutions 7,000 feet below the Earth’s surface, which results in alcohol-free nascent iodine. It makes use of vegetable glycerin to hold the iodine solution, which makes it more stable and suitable for the public, as the use of alcohol may not be suitable for children, alcoholics, or other people who should refrain from alcohol consumption. (2)

The Go Nutrients Iodine Edge not only provides the RDA, but goes beyond that, and this might have unpleasant effects for those who have to deal with hypersensitivity.

Pros
  • Can be ingested in the mouth directly or by diluting in liquids
  • High concentration of iodine
  • Vegetable glycerin (non-GMO)
  • Gluten-free
Cons
  • While the label on the package does mention 'mild taste,' it can actually be unpleasant to the taste buds when swallowed directly.
  • Never take 6 drops directly, as mentioned above, as hypersensitivity can occur when we don't allow our body to get used to the shock of having a higher concentrate of iodine intake

3. J. CROW'S – Lugol's Solution 2%

3. J. CROW'S – Lugol's Solution 2%
J. Crow's has two types of Lugol's solution of iodine, one with 2% and one with 5%. J. Crow's is known for their high concentration of iodine in their Lugol's solution, which is around 15,000 mcg for every 6 drops taken from the bottle. However, the solution is in a mixture of 2:3 iodide to iodine.
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A study conducted revealed that approximately 95% of Americans lack sufficient iodine. As such, the 15,000 mcg per daily dosage of J. Crow’s seems reasonable. This study also revealed that a doctor who had prescribed 12,500 mcg of iodine to his pregnant patients had positive results. (3)

Unless you are suffering from iodine deficiency, you should go with no more than 2-3 drops a day. Both iodide and iodine are different but will be processed by the different parts of your bodies. However, in excess, it has been found out that several participants in other studies showed mild hypothyroidism.

At the same time, you might be intrigued to know that 12,500 mcg a day is the daily consumption intake of most people in Japan. They were not known to have many cases of thyroid problems, either, and pregnant women can consume up to 13,800 mcg a day.

Pros
  • Potent
  • Mix of iodide and iodine
  • 1200 vertical drops, can be used for a long time
  • Great value for money, as with its high concentration of iodine, the product lasts for 200 to 400 days, depending on use
Cons
  • Suggested dose is quite high, and controversial
  • There is no information by the manufacturers on the risks of taking a high dose of Lugol's solution

4. Dr. Berg Nutritionals – Sea Kelp

4. Dr. Berg Nutritionals – Sea Kelp
Dr. Berg's Organic Sea Kelp provides a high amount of iodine in each capsule, which contains 500 mg of kelp. It is great to know that the kelp is organically-sourced from Iceland, a region known to be clean and free of sea-pollutants.
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However, a major issue is the fact that there are several questions left unanswered by the producers, such as whether the plastic bottle is BPA-free or what exactly the amount of iodine per serving is. But, while we do not know the exact numbers, we would like to inform you that 500 mg of kelp should provide more than 2,000 mcg of iodine in a single serving.

Another thing to watch out for is side effects, such as dizziness, which possibly come from the sudden high dose of iodine. Since the manufacturers fail to give the amount of iodine per serving, not going above the RDA should keep you within the safe zone.

With a high amount of iodine in 500 mg of kelp, you will also want to make sure you are taking enough selenium to balance it out and ensure that everything is absorbed and properly utilized by your body. Truth be told, the iodine from kelp works as we would expect from any other iodine supplements. It is just a matter of transparency about the process of manufacturing and the number of active substances that affects the ranking of this supplement.

Pros
  • Possibly high amount of iodine from organic kelp
  • Kelp is sourced from Iceland, a clean oceanic region
Cons
  • No information on gluten, soy, or other ingredients
  • No exact amount of iodine per serving, although we can assume that it is high
  • Non-vegan

5. J. CROW'S – Lugol's Solution 5%

5. J. CROW'S – Lugol's Solution 5%
With 5% concentrate of Lugol's solution, you get even more iodine from a single drop of this supplement than in the 2% J. CROW'S Lugol's Solution variant. But, it is important to note that Lugol's solution at 5% is bound to have energizing components. 2 drops are enough to get you pumped for the day, so consuming them, whether 2% or 5%, will definitely cause insomnia. Remember to consume with selenium.
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There is a lot of controversy surrounding J. CROW'S Lugol's Solution 5% Iodine due to its 5% Iodine (2,500 mcg), 10% Potassium Iodide (5,000 mcg) composition. On one side, a lot of health experts would not recommend high doses to their patients for fear of adverse effects, while others prescribe themselves way beyond the recommended serving amount.

Now, we advise that anyone with thyroid problems avoid this, as a crisis occurs when iodine is trying to rid the body of other dangerous halogens (fluoride, bromine) from being bonded with your thyroid.

Pros
  • Potent
  • Mix of iodide and iodine
  • 1200 vertical drops, can be used for a long time
Cons
  • Has a high controversial dosage
  • Manufacturers need to provide more information on risks of high-dose Lugol's solution

6. Terry Naturally – Tri-Iodine

6. Terry Naturally – Tri-Iodine

Terry Naturally – Tri-iodine provides Iodine in three forms: potassium iodide, sodium iodide, and molecular iodine. The iodine is sourced from kelp, which you might have been told to be careful of when looking for iodine supplements.

What exactly is the cause for concern?

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Kelp-sourced iodine is not necessarily dangerous; it still has the same iodine as that found from salt. What many are concerned about is the region where the kelp is harvested. The ocean today is so polluted by oil spills and the irresponsible acts of humans dumping dangerous chemical trash into the sea. This will affect seawater creatures, including kelp. Dangerous substances can be absorbed by this underwater vegetation.

This is the reason why you need to be careful of not the kelp, but where it's from.

The list of ingredients here is clear, and we like that. It even says that it is gluten-free. However, we haven't found anywhere that talks about where the kelp comes from. It is also important to note that this supplement has 12,500 mcg of tri-iodine per capsule, which is pretty high.

Pros
  • Tri-iodine for optimal absorption in different parts of the body
  • Gluten-free
  • Non-GMO
Cons
  • We are not sure where the kelp comes from; some regions of the world are polluted with mercury, which will reduce the potential of the supplement
  • High, inflexible serving dose

7. Zhou – Thyroid Support

7. Zhou – Thyroid Support
Zhou not only provides iodine in their supplement, but also additional minerals that will help your thyroid to function like a brand-new gland. A single serving provides zinc, manganese, iodine, vitamin B12, and selenium to ensure you are getting enough micronutrients in your body.
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However, a major drawback is the amount of iodine per serving in a capsule. It does still fulfill the RDA of 150 mcg a day. If you are simply looking forward to improving your overall health with only iodine, this might not be the right supplement for you.

When you consume this, there is a necessity to consult with a healthcare provider if you do have thyroid problems. This is because there are a lot of ingredients you need to make note of to make sure that you do not overdose on them, especially when taking other thyroid medicines.

Pros
  • Contains a lot of other supportive ingredients for your thyroid, such as selenium
  • Made from Atlantic kelp, a region known to have a clean, pollution-free ocean
  • Potent for those who need to improve their thyroid functions immediately
  • Vegan-friendly
  • Gluten-free
  • Non-GMO
  • Soy-free
Cons
  • If you are thinking of increasing iodine intake, this is not the supplement for you, as it contains only 150 mcg per serving (2 capsules)

8. Life Extension – Sea-Iodine

8. Life Extension – Sea-Iodine
Sea-iodine by Life Extension promotes the fact that Americans have been heavily suggested to reduce their salt intake. While it is well-known that iodized salt came into existence to improve iodine deficiency in people, the suggestion to reduce salt intake introduces a dilemma when trying to stay healthy. This is the reason why Life Extension derived iodine from seawater plants.
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Each vegetarian capsule contains 1 mg (1,000 mcg) of iodine, which is higher than the droplets in nascent iodine and Lugol's solution. The serving per single capsule is nice, and if you wish to increase your intake, you can always take one more capsule. However, we would suggest that anyone making use of Life Extension try only a single capsule for the first week to check if your body will react heavily with the iodine.

Kelp has been known to be one of the best sources to increase iodine in your diet. However, the manufacturers did not state where they get their kelp from.

Pros
  • 1000 mcg per capsule makes it easier to regulate your daily intake
  • Vegan-friendly
  • Made from organic sea kelp and bladder wrack
  • Very affordable
Cons
  • Contains silica, some people might be reluctant to consume things with silica, as there is still further research needed to see if this will affect you
  • Not sure where the kelp is sourced from

9. Swanson – Kelp

9. Swanson – Kelp
Another kelp-sourced iodine by Swanson. Each capsule contains 225 mcg of iodine, a pretty low number, and with the recommended daily dosage of 1 tablet per day, this might not be enough. However, it does not lack in power if you simply adjust the amount to what you want.
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The Swanson Kelp also passes Consumer's Lab test for various dangerous chemicals, such as lead and arsenic. Swanson Kelp also has GMP (Good Manufacturing Practice) certification. The shelf life is about 2 years.

It lasts 250 days per pack, that is, if you consume only one a day. The fact is that you're more likely to enjoy more benefits if you can take at least 3 or 4 tablets a day, which is equal to 675 mcg to 900 mcg of iodine.

Pros
  • GMP certified
  • Derived from organic kelp
  • Low, adjustable serving of iodine
  • Passed Consumer's Lab test for arsenic and lead
Cons
  • The source of the kelp is unknown, and this can be detrimental if the source is from polluted areas
  • Low iodine amount in recommended serving amount compared to other supplements

10. Nutra Champs – Thyroid Support

10. Nutra Champs – Thyroid Support
Nutra Champs' and Zhou's thyroid support are similar products. They have the same amount of active substances in each serving, even down to how many are served and how long a single pack lasts. They have very similar ingredients.
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The only difference lies in the amount of Ashwagandha Root Powder, which is 50 mg more in Nutra Champ than in Zhou's Thyroid Support.

Having more complex active substances than the rest of the supplements we have reviewed above, the Nutra Champ’s Thyroid Support is very effective when you know that your thyroid gland is suffering from imbalanced hormones and is probably showing signs of goiter. Admittedly, this product is amazing in helping your thyroid gland. However, it has a noticeably low amount of iodine.

If you are a woman who is looking forward to improving your iodine intake for childbearing, this is not the right supplement for you.

Pros
  • Contains a lot of other supportive ingredients for your thyroid, such as selenium
  • Non-GMO
  • Vegan-friendly
  • GMP certified
Cons
  • It is not meant to be consumed for only iodine needs, as there's only 150 mcg per serving (2 capsules)

Supplement Recommendation Recap

Overall, we’ve chosen Detoxadine – Nascent Iodine as the editor’s choice in our list of the best iodine supplements. The fact that is sourced from natural salt underground makes its iodine potency high and the use of vegetable glycerin to hold the nascent iodine makes it easily digestible.

Another choice you can consider is the Zhou’s – Thyroid Support, which is great for individuals looking for a supplement more focused on thyroid support. The other ingredients such as Zinc, Magnesium, and Selenium boost energy and help with digestive problems.



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