Doctors recommend consuming iodised salt because iodine is a vital micronutrient required for the synthesis of thyroid hormones—thyroxine and triiodothyronine. These hormones control metabolism, body temperature, and overall growth. Iodine also supports brain development and nervous system functions. A deficiency of iodine leads to goitre, fatigue, and mental dullness. Regular intake of iodised salt prevents such disorders and helps maintain a healthy thyroid gland, ensuring the body’s proper growth, development, and energy balance.