How much iodine is harmful? Understanding safe limits and risks
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4 min read
According to the National Institutes of Health, the tolerable upper intake level (UL) for iodine in adults is 1,100 micrograms (mcg) per day, a threshold that, when regularly exceeded, can cause adverse health effects. Understanding how much iodine is harmful is crucial for maintaining proper thyroid function and avoiding toxicity from supplements or high-iodine foods.