Also known as: Iodide, Potassium Iodide
Iodine is an essential trace mineral required for thyroid hormone synthesis, which regulates metabolism, growth, and development. Deficiency remains a global health concern and is the leading preventable cause of intellectual disability worldwide.
Iodine is a trace element that the thyroid gland uses to produce thyroxine (T4) and triiodothyronine (T3), hormones that control basal metabolic rate, thermoregulation, and neurodevelopment. Approximately 70–80% of the body's iodine is concentrated in the thyroid. The WHO recommends 150 µg daily for adults, with higher needs during pregnancy and lactation. Iodized salt programs have dramatically reduced deficiency-related goiter and cretinism since the 1920s, yet mild-to-moderate deficiency persists in parts of Europe and Southeast Asia. Supplementation is most beneficial for individuals with documented deficiency or increased requirements; excessive intake can paradoxically suppress thyroid function.
Iodine is an essential substrate for T3 and T4 synthesis. Adequate intake prevents hypothyroidism, goiter, and metabolic dysfunction related to thyroid insufficiency.
Maternal iodine sufficiency is essential for fetal brain development. Even mild deficiency during pregnancy has been linked to reduced IQ scores in offspring.
Thyroid hormones produced from iodine regulate basal metabolic rate, influencing energy expenditure, body temperature, and weight management.
With a meal
Matches the WHO/RDA recommendation for adults. Higher doses only under medical supervision.
With a meal, preferably morning
WHO recommends 250 µg daily during pregnancy and lactation to support fetal and infant development.
Daily supplementation and deficiency prevention
Natural whole-food iodine source
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