Which of the following trace elements is essential for the production of thyroid hormones?

A Selenium
B Iodine ✓
C Zinc
D Copper

Explanation

Iodine is a critical component of thyroid hormones, which regulate metabolism, growth, and development.

Mnemonic

_Iodine = Io-dine (thyroid hormone)

Source

World Health Organization
Minerals and Trace Elements Nutrition Thyroid Function Easy MEDICAL Confidence: high