Which nutrient is most commonly associated with immune function support?

Vitamins play a crucial role in supporting immune function due to their various biological functions and activities. Certain vitamins, such as Vitamin C, Vitamin D, and certain B vitamins, are well documented for their significant contributions to the immune system.

Vitamin C, for instance, is an antioxidant that helps protect cells and supports the production of white blood cells, which are essential for fighting infections. Vitamin D has a unique role in modulating the immune response and reducing inflammation. Other vitamins, like A and E, also assist in maintaining healthy immune function by protecting against oxidative stress and supporting the integrity of skin and mucosal barriers.

While proteins, fats, and carbohydrates are essential for overall health and energy, they do not have the same direct and specific roles in immune modulation and support as vitamins do. Therefore, vitamins are the nutrients most closely associated with enhancing and supporting immune function.