Which vitamin is critical for immune function and skin health?

Vitamin C plays a vital role in immune function and skin health because it is a powerful antioxidant that helps protect cells from damage caused by free radicals. This vitamin also supports the function of various immune cells and promotes the skin's ability to heal and regenerate. Specifically, vitamin C is crucial for the synthesis of collagen, a protein that provides structural support to the skin, making it essential for maintaining skin health and integrity.

In the context of immune function, vitamin C aids in the activity of white blood cells, enhancing their ability to fight infections. Additionally, it can help reduce the duration and severity of colds and other respiratory infections.

While other vitamins also contribute to immune function and skin health, vitamin C is particularly well-researched and recognized for these specific benefits, making it an essential nutrient in these areas.