Iodine is a trace ingredient in certain foods that is naturally present, is added to others, and is also available as a dietary supplement. Thyroid hormones control many essential biochemical processes, including protein synthesis and enzymatic activity, as well as being vital determinants of metabolism. They are also needed by fetuses and infants for proper development of the skeleton and central nervous systems.

Thyroid hormones play major roles in a wide variety of body functions including metabolism, bone health, immune response, and central nervous system growth. Iodine helps turn the thyroid-stimulating hormone (TSH) into triiodothyronine (T3) and thyroxine (T4).

1. Optimox - Iodoral, High Potency Iodine Potassium Iodide


Optimox Iodoral High Potency Iodine Tablets are simple iodine supplements that come from a fine organization and provide great value for your hard-earned money.

 It is a substance with very high potency, so bear this in mind. While not as successful as some of the supplement industry's household names, Optimox has risen steadily, thanks to its good quality ingredients and affordable prices.


- Each capsule provides 5mg of iodine

- 120 capsules in a bottle

- High potency of potassium

Why We Like It

- Pleasant flavor

- Easy to swallow

2. SmartyPants Prenatal Formula Daily Gummy

If you're pregnant and have trouble tolerating daily tablets, prenatal gummies of SmartyPants are a fantastic choice. Smarty Pants' goods are checked for quality by third parties, so you don't have to worry about them having any toxins or potentially dangerous additives not specified on the packaging.

They are free from chemical sweeteners and flavored naturally with fruit and vegetable juices.


- Improves immunity with vitamin D3

- Gluten and allergen-free

- 120 tablets in each bottle

Why We Like It

- Sweetened flavor

- Separate bottles for each age group and gender

3. Global Healing Center Detoxadine


Detoxadine Advanced Iodine Supplement is a fantastic complement to iodine that allows the use of this essential nutrient's embryonic type.

Using this nutrient's embryonic form ensures it is absorbed better, and more thoroughly. That being said, it's on the costlier side, so bear that in mind if budget is a concern for you.


- 650mcg iodine in each drop

- 200 servings in a bottle

- Vegan-friendly ingredients

Why We Like It

- Absorbs very easily

- Boosts metabolism

4. NOW Supplements


NOW Foods Kelp Caps are an ideal way to receive a daily iodine dose every day. Kelp is a sea vegetable that naturally contains high amounts of iodine, like seaweed. For those looking for a simple, real, and non-synthetic commodity this is a good option.

This supplement uses only sea vegetables, and nothing else, so you can be confident that you get a standard dose of the nutrients you need.


- 325mcg of iodine in each capsule

- Vegan

- Rich in nutrients

Why We Like It

- Boosts energy

- Contains the natural essence of kelp

 5. Raw Whole Food Iodine from Organic Kelp


This iodine supplement from High Production offers 150mcg of iodine, or 100% of the RDI, solely from organic kelp. The most significant allergens, including tree nuts, seafood, shellfish, poultry, wheat, and gluten are omitted, the tablets are vegan friendly and healthy.

No additives or sweeteners are added, and all products made by this organization are tested for purity by third parties.


- 60 tablets in a bottle

- Gluten-free

- Made from organic kelp

Why We Like It

- No artificial flavors or colors

- Improves immunity

Buying Guide for The Best Iodine Supplements

A healthy diet is one of the main elements of a balanced lifestyle, but so many of us lack main substances such as iodine. Now let’s see what you need to consider before buying iodine supplements.

Factors To Meet

Iodine supplementation is intended to circumvent a shortage, and iodine shortages are very uncommon in countries of the first world. You should consider supplements if:

- You are a vegan or vegetarian who deliberately refuses processed food or a meat eater who only consumes fish, meat and avoids eating greens

- You don't include extra iodinated salt in your diet

- You ban seaweed or seaweed-based goods


Iodine deficiency has many adverse effects on growth and development and is the world's most common cause of avoidable intellectual disability. Iodine deficiency is related to the poor development of thyroid hormones.

Hypothyroidism happens when a person's iodine level decreases to about 10 to 20mcg per day, a disorder that is also followed by goiter. In general, goiter is the first clinical symptom of iodine deficiency. In pregnant women, this severity of iodine deficiency can cause severe neurodevelopmental defects and fetal growth retardation, as well as miscarriage. Symptoms of iodine deficiency include hair loss, tiredness, skin problems, as well as heart rate and temperature changes to name a few.

How Much Iodine?

We should prevent daily supplements that contain more than 500 micrograms of iodine. Some iodine, potassium iodide and kelp supplements contain up to several thousand times higher levels of iodine than the maximum tolerable upper limit of 1,100mg per day. The suggested daily iodine intake limit is 150mg for both males and non-pregnant females, 220-250mg for pregnant women, and 250-290mg for breast-feeding mothers. Before conceiving, during breastfeeding, and during breast-feeding, women need to take multivitamins that contain 150mg of iodine daily.

Before You Pick a Supplement

Do not take an iodine supplement or attempt to increase the consumption of iodine by eating more iodine-rich foods until a doctor who thoroughly knows the condition and role of the thyroid and the root causes of thyroid disease gets a detailed look. Too much or too little iodine can cause severe health problems and the daily intake of iodine required by each person for optimum thyroid health and work varies.

Bottom Line

It is safer to get your iodine from your diet whenever appropriate, whether a doctor or health care provider prescribes supplements or not. It is better to eat food that includes a range of nutrients than to rely on specific nutrients as a path to good health.

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