What nutritional support is indicated for enhancing natural defense mechanisms?

The correct choice emphasizes the importance of specific vitamins and minerals in enhancing the body's natural defense mechanisms. Vitamins A, C, and E, as well as selenium, play vital roles in supporting the immune system.

Vitamin A is crucial for maintaining mucosal surfaces, which serve as a barrier against pathogens, and it also supports the function of immune cells. Vitamin C is known for its antioxidant properties and is involved in the production of white blood cells, which are essential for fighting infections. Vitamin E acts as an antioxidant as well and helps to stabilize cell membranes, contributing to immune function. Lastly, selenium is an important mineral that functions as an antioxidant and promotes the activity of immune cells.

When a diet is rich in these nutrients, it can help bolster the body's ability to respond to infections and reduce the risk of illness, thereby enhancing overall immune health.

In contrast, a diet high in carbohydrates might not provide the necessary nutrients to support immune function effectively. While fats are essential for various bodily functions, not all fats contribute positively to immune health, and a high-fat diet does not guarantee an adequate intake of critical vitamins and minerals. A high-protein diet alone may support tissue repair and muscle health but does not directly address the broader range of nutrients necessary for