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What are some foods high in iodine?

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Quick Answer

Some foods that are high in iodine include seaweed and sea vegetables; fish such as haddock and cod; shrimp; oysters; and iodized salt, or salt with iodine added to it. Seafood tends to be high in iodine because the animals absorb the mineral from seawater. Milk and dairy products are also good sources of iodine, as are plants that are grown in soil with a high iodine content.

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What are some foods high in iodine?
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Full Answer

Eggs; tuna canned in oil and drained; cream-style corn; prunes; and cheddar cheese are also high in iodine, states the Office of Dietary Supplements. The amount of iodine found in fruits and vegetables depends largely on the iodine-richness of the soil where they were grown. Meat products contain iodine because iodine is added to animal feed, and iodophor is used as a sanitizer on dairy farms. Soy products are also good sources of iodine.

Iodine is a trace mineral that the body converts into iodide. It's absorbed from the gastrointestinal tract into the bloodstream and then sent to the thyroid gland. Iodine is crucial to the good functioning and development of the thyroid gland and helps it produce thyroxine, a hormone that regulates the body's metabolism. About 30 percent of the iodine a person ingests goes to the thyroid gland. The kidneys absorb the rest, and any iodine left over is excreted.

Iodine is also found in multivitamins as sodium iodide and potassium iodide, notes the Office of Dietary Supplements. Potassium iodide and cuprous iodide have been added to salt in the United States since the 1920s. The Food and Nutrition Board recommend adults 19 years or older receive 150 micrograms of iodine every day. The recommended daily allowance is higher for women who are pregnant or nursing.

A healthy thyroid gland supports the health of the skin, teeth, nails and hair. Iodine is also necessary to help the body convert carotene to vitamin A and to absorb carbohydrates from the intestines. It also helps ribosomes synthesize protein and helps the body make vitamin D. They also support the growth of the skeleton and central nervous system in fetuses and babies. Iodine might also support the immune system and guard against disorders such as fibrocystic breast disease.

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