Iodine Allergy Symptoms and Diagnosis


Seasonal allergies are very common, but with day to day cases of food allergies also increasing.

Iodine, which is an important mineral for body functioning can actually trigger allergic reaction. Iodine allergy isn’t very common, but symptoms can’t be ignored.

Causes of Iodine Allergy

This adverse behavior of immune system can be triggered by iodine content in food or due to iodinated contrast dyes used for scanning in medical testing.

Apart from this, tincture of iodine can also result in skin rashes in hypersensitive people.

When your immune system detects a foreign material, it reacts harshly by releasing IgE molecules. These molecules further stimulate mast cells and signal to release histamine.

Soon after you ingest, touch or inhale allergic substance, a chemical reaction is triggered.

Iodine Allergy Symptoms

Mild symptoms like nausea, vomiting, itching, hives and flushing can be experienced if you’re sensitive to iodine.

The main reason for topical reaction with iodinated contrast dye is being studied by experts.

In rare cases the allergic reaction may lead to anaphylaxis situation like difficulty in breathing, abdominal pain, diarrhea, hives, rapid pulse rate, nausea, confusion, lightheadedness and unconsciousness.

People with asthma and cardiomyopathy ailments may face severe symptoms with iodine interaction.

According to recent article, too much iodine is bad and too little is also bad for pregnant women. It also state that vomiting in pregnant women denotes healthy embryo. (Source)

Things You Cannot Eat If You’re Allergic to Iodine

According to WHO, iodine deficiency is very prevalent. Taking foods that include iodine can improve the weakness. However, people with iodine allergy must avoid these iodized food items.

  • To reduce the deficiency, iodine is included in salt. If allergic symptoms are acute, then you can consider small amount of iodized salt. Anyhow, you can possibly purchase salt without iodine.
  • According to, one cup of cow milk has 56 micrograms of iodine. Dairy products like cheese, ice cream and yogurt may also contain iodine.
  • 3 ounces of cod fish contains 99 micrograms of iodine. Fish and sea foods are natural source for iodine. According to Tulane University, amount of iodine in fish depends on the water they swim.

Other foods that you must avoid with iodine allergy include egg which contains 12 micrograms of iodine and legumes with 32 micrograms of iodine. Iodine content in vegetables depends on the iodine concentration in the soil.

It’s better to wash and peel the vegetable before cooking.

How to Treat Iodine Allergy?

Allergic reaction to iodine consumption is very rare. Your body needs iodine for normal functioning of thyroid. Don’t avoid it without consulting your doctor. Talk to your physician and follow his instructions.

However, medical image testing and iodine antiseptic may trigger contact dermatitis. Let your physician know that you’re allergic to iodine, so he will avoid those substances which include iodine traces.

Avoiding is the only way to treat an allergic reaction.

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