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A swelling of the thyroid gland in the neck, usually caused by not getting enough iodine in the diet.
India's compulsory iodisation of salt was introduced specifically to bring down goitre and other iodine-deficiency problems.
A simple, natural substance like iron, calcium, or iodine that the body needs in small amounts for bones, blood, and other functions.
Adding extra vitamins or minerals to a common food on purpose, to fight nutrient deficiencies across a large population.
