Which trace element is essential for the proper functioning of the immune system, particularly in the activation of natural killer cells and the production of cytokines?

A Selenium
B Zinc ✓
C Copper
D Iron

Explanation

Zinc is crucial for immune system function, including the activation of natural killer cells and the production of cytokines, which help to fight off infections and diseases.

Source

Journal of Nutrition and Immunology
Minerals and Trace Elements Immunology and Nutrition Zinc and Immune Function Hard NURSING Confidence: high