Iodine: MedlinePlus supplements

Iodine is PROBABLY SAFE in most people n recommended amounts when ingested or applied to the skin appropriately with approved products. In some people iodine can produce serious side effects. The most common side effects include nausea and stomach pain, runny nose, headache, metallic taste and diarrhea.

In sensitive people, iodine can cause side effects, including lip and face swelling (angioedema), severe bleeding and bruising, fever, joint pain, enlarged lymph nodes, allergic reactions including rash and death.

Large amounts or long-term use of iodine, POSSIBLY NOT SAFE . Adults should avoid prolonged use of doses greater than 1100 mcg per day (the Maximum Tolerable Intake (UL) level without adequate medical supervision.) In children, the dose should not exceed 200 mcg per day for children 1 at 3 years, 300 mcg per day for children aged 4 to 8 years, 600 mcg per day for children 9 to 13 years of age, and 900 mcg per day for adolescents.These are the Tolerable Maximum Intake Limits ).

There is concern that in children and adults, higher consumption may increase the risk of side effects such as thyroid problems.In high amounts iodine can produce metallic taste, pain in the teeth and gums, burning in the mouth and throat, increased salivation, inflammation of the throat, upset stomach, diarrhea, weakness, depression, skin problems and many other side effects.

Iodine: MedlinePlus supplements

Autoimmune thyroid disease : People with autoimmune thyroid disease may be especially sensitive to the harmful side effects of iodine.

A type of rash called dermatitis herpetiformis . Taking iodine may make this disease worse.

Thyroid disorders, such as an alteration of the thyroid gland that causes a decrease in the production of thyroid hormones (hypothyroidism), a gland enlarged thyroid (goiter), or a thyroid tumor : Prolonged use or high doses of iodine may worsen these disorders.

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