Part 11 · Food and Nutrition
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In a Himalayan village decades ago, many people had swollen necks (goitre), and some children were born with severe intellectual disability (cretinism). The soil lacked iodine. After iodised salt reached the village, new goitres became rare, and children grew up healthier and smarter. Meanwhile, in parts of Rajasthan and Andhra Pradesh, high fluoride in well water causes mottled teeth and crippled bones. There, the answer is safe, low‑fluoride water.
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