What is a key component of nutrition that serves to support bodily functions without providing energy?

Vitamins are essential nutrients that play a crucial role in various bodily functions, including immune support, energy production, and the maintenance of healthy skin and tissue. Unlike carbohydrates, proteins, and fats, which are primarily sources of energy for the body, vitamins do not provide calories themselves. Instead, they act as catalysts in metabolic processes and are vital for converting food into energy as well as for maintaining overall health.

Each vitamin has specific roles; for example, Vitamin C is important for collagen synthesis and immune function, while B vitamins are key players in energy metabolism. Their unique functions highlight why they’re considered a cornerstone of nutrition, particularly in supporting bodily functions without contributing to the caloric intake. This is why vitamins are recognized as a key component in a balanced diet, especially in the realm of esthetics, where proper nutrition is critical for skin health and appearance.