The trace mineral iodine is integral to thyroid hormones, which control several vital functions throughout the body. The Earth’s oceans are by far the dominant source of iodine; consequently, iodine is also rich in the soil, groundwater, and air of coastline regions. But throughout much of the world, iodine deficiency is a widespread health problem.
Iodide is the molecular form of dietary iodine found in the body. Without adequate iodide, the function of thyroid hormones is compromised. The hormones T4 and T3 play vital roles in energy metabolism, growth, blood cell production, nerve and muscle function, and more. Goiter and cretinism, a form of severe mental and physical retardation, result from iodine deficiency.
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