Iodized salt is used to prevent which condition?

• A. Rickets
• B. Goiter
• C. Scurvy
• D. Beri-beri

Answer: (C)

Iodine is essential for making thyroid hormones. When iodine intake is low, the thyroid can't produce enough of these hormones, and the gland enlarges in an effort to trap more iodine—this enlargement is called goiter. Providing iodine through salt ensures a reliable dietary source, preventing iodine deficiency and the development of goiter.

Other conditions listed come from different nutrient gaps: rickets results from insufficient vitamin D and calcium affecting bone growth, scurvy from a lack of vitamin C, and beri-beri from thiamine (vitamin B1) deficiency. So iodized salt specifically helps prevent goiter.