What is zinc's primary role in the body, and what are signs of zinc deficiency?

• A. Zinc is the primary energy source for cells.
• B. Zinc helps regulate body temperature.
• C. Zinc supports immune function, growth, and wound healing.
• D. Zinc stores calcium in bones.

Answer: (C)

Zinc’s main role is as a trace mineral that supports immune function, growth, and wound healing. It acts as a cofactor for many enzymes and transcription factors, helping DNA synthesis, cell division, and protein production. This underpins the body’s ability to grow and develop properly, maintain skin and mucous membranes, and mount effective immune responses. When zinc is deficient, you commonly see growth delays in children, slower wound healing, and a higher susceptibility to infections, along with possible taste changes and hair loss.

It isn’t an energy source, it doesn’t regulate body temperature as a primary function, and it doesn’t store calcium in bones.