Zinc is an essential trace mineral involved in hundreds of enzymatic reactions in the body. It plays a critical role in immune defence, cell growth, wound healing, taste and smell perception, and hormone regulation. Because the human body does not store zinc long term, a steady dietary supply is necessary. Zinc deficiency, even at mild levels, can affect immunity, skin health, and recovery from illness. Including a mix of these foods across meals helps meet daily zinc needs without supplementation.