Which mineral is essential for the synthesis of thyroxine, a hormone produced by the thyroid gland?

A Iodine ✓
B Selenium
C Zinc
D Copper

Explanation

Iodine is a crucial mineral for the production of thyroxine, a hormone that regulates metabolism.

Mnemonic

Iodine = Io-dine → 'io' as in 'iodized' salt

Source

National Institute of Nutrition
Minerals and Trace Elements Nutrition Thyroid Function Easy MEDICAL Confidence: high