Which mineral is recognized for its antioxidant properties, particularly in immune function?

Selenium is well-known for its role as a crucial antioxidant, particularly in supporting immune function. It is an essential trace mineral that helps protect cells from damage caused by free radicals, which are unstable molecules that can lead to oxidative stress. This oxidative stress is associated with chronic diseases and can impair the body's immune response.

Selenium contributes to the activity of antioxidant enzymes like glutathione peroxidase, which plays a vital role in detoxifying harmful substances in the body. By enhancing the body’s antioxidant defense system, selenium helps maintain a balanced immune system, promoting overall health and resilience against infections and diseases.

In contrast, while calcium, potassium, and magnesium are important minerals for various bodily functions, they do not have the same direct antioxidant properties as selenium nor do they play a significant role specifically in immune function as antioxidants. Calcium is primarily involved in bone health and muscle function, potassium regulates fluid balance and muscle contractions, and magnesium is important for enzymatic reactions and energy production. Therefore, the recognition of selenium as an antioxidant enhances its significance in the context of immune health.