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Can Iodine Cause Acne Or Rashes?

Question:
Is it true that iodine can cause acne or other skin problems?

Answer:
Although uncommon, certain individuals who are sensitive to iodine can develop acne breakouts, rashes, or other skin reactions when consuming iodine from iodized table salt (specialty salts such as Himalayan salt are typically not iodized) or supplements such as certain multivitamins and kelp supplements. For more about this, and other potential side effects and drug interactions with iodine-containing supplements, see the Concerns and Cautions section of the Kelp Supplements Review.

People who are sensitive to iodine should be aware that iodine may be present in products that you may not expect, including certain protein powders and shakes, nutrition bars, meal replacement powders and shakes, greens and whole foods supplements, and even some probiotic supplements and menopause products.

Iodine is essential for healthy functioning of the thyroid gland which, among other things, controls the body's metabolism, and, during pregnancy and infancy, influences bone and brain development.

Be aware that taking very large doses of vitamin B12 can cause outbreaks of acne -- even in older people.

Learn more about iodine:



I take levothyroxine (Synthroid), a thyroid hormone to treat hypothyroidism. Are there supplements I should avoid, or be taking, due to this drug? >>

I have heard that nascent iodine may be better than regular iodine or potassium iodide for thyroid support. Is this true, and what exactly is nascent iodine? >>

I'm interested in using Himalayan salt. What are the health benefits with it and other specialty salts? Are there contaminants in these salts? >>

See other recent and popular questions >>
COMMENTS

Jane16716   April 12, 2018
"Iodine (I2) is present in sea water, but not in sea salt. Why? Because it is volatile; it evaporates during the drying of the salt. In order to obtain iodized salt, potassium iodide (KI), which is much less volatile than pure iodine, must be added. Potassium iodide also has the advantage of having a less-pronounced taste and does not modify the colour of the salt (iodine varies in colour from violet to brown).
Iodized salt, the first functional fortified food, appeared in America in 1924 (it had already been in existence in Switzerland), to compensate for iodine deficiency, which used to be very frequent." This is from a Sep 2017 blog/magazine on NewRootsHerbal.com. NRH is a reputable supplements company. It has been surmised that the popularity of exotic salts which are not iodized will again produce iodine deficiencies. I have also read that all salt is sea salt, even if after a million years it is no longer near any sea.

ConsumerLab.com   April 12, 2018
Hi Jane - You are right that sea salt, as well as Himalayan salt, is not a good source of iodine. This is discussed in more detail toward the bottom of our answer found here: https://www.consumerlab.com/answers/what-are-the-health-benefits-and-safety-of-himalayan-salt/Himalayan-salt-specialty-salt/.

John16650   April 1, 2018
why Himalayan salt if it is not iodized? Should be the opposite.


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This CL Answer initially posted on 3/31/2018. Last updated 4/1/2018.
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