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  1. Iodine - Wikipedia

    Iodine is a chemical element; it has symbol I and atomic number 53. The heaviest of the stable halogens, it exists at standard conditions as a semi-lustrous, non-metallic solid that melts to form a …

  2. Iodine - Uses, Side Effects, and More - WebMD

    Humans cannot produce iodine, so it must be consumed. It is added to some foods and also to salt. Iodine reduces thyroid hormone and can kill fungus, bacteria, and other microorganisms such as...

  3. Iodine - Health Professional Fact Sheet - Office of Dietary Supplements

    Iodine is a trace element that is naturally present in some foods, is added to some types of salt, and is available as a dietary supplement. Iodine is an essential component of the thyroid hormones …

  4. Iodine | Chemical Properties, Uses, & Applications | Britannica

    Dec 12, 2025 · Iodine, chemical element, a member of the halogen elements, or Group 17 (Group VIIa) of the periodic table.

  5. Iodine Uses: Benefits, Side Effects, Recommendations, and More

    Mar 14, 2019 · Iodine is an essential nutrient that can support brain development and reduce your risk for thyroid disease. Here are 10 uses of iodine, plus side effects and recommendations for daily intake.

  6. Iodine - Element information, properties and uses | Periodic Table

    Iodine is an essential element for humans, who need a daily intake of about 0.1 milligrams of iodide. Our bodies contain up to 20 milligrams, mainly in the thyroid gland. This gland helps to regulate growth …

  7. Iodine: Thyroid Uses, Warnings, Side Effects, Dosage

    Iodine is a trace mineral used by the body to produce thyroid hormones. Iodine is not naturally synthesized by the body and must be obtained with dietary intake.

  8. Iodine Benefits - Verywell Health

    Nov 30, 2024 · Iodine is an essential mineral that helps your thyroid gland produce thyroid hormones. Learn more about the benefits, side effects, and more.

  9. Iodine in diet: MedlinePlus Medical Encyclopedia

    Feb 4, 2025 · Iodine is a trace element and a nutrient found naturally in the body. Iodine is needed for the cells to change food into energy. Humans need iodine for normal thyroid function, and for the …

  10. Iodine | Linus Pauling Institute | Oregon State University

    Iodine is a key component of thyroid hormones, which are required throughout life for normal growth, neurological development, and metabolism. (More information) Insufficient iodine intake impairs the …