Why is zinc important for the immune system?

Zinc is essential for the immune system primarily because it plays a vital role in the development and function of immune cells. It is a crucial component in maintaining the integrity of the immune system as it is necessary for various cellular functions, including the proliferation and activation of T lymphocytes (a type of white blood cell) and the production of antibodies. Adequate levels of zinc are required for the proper functioning of innate and adaptive immune responses, which are essential for protecting the body against infections and diseases.

While maintaining skin health and acting as an antioxidant are also important functions of zinc, they are indirect influences on the immune system rather than its primary roles. Similarly, zinc's potential effect on hair growth is not directly related to immune function. Thus, the key to understanding zinc’s importance lies in its critical support for immune cell development and function, highlighting its role as a cornerstone of immune health.