What is the main function of vitamins in the body?

Vitamins play a crucial role in the body primarily by facilitating biochemical reactions and supporting various bodily functions. They are essential organic compounds that our bodies need in small amounts to maintain numerous physiological processes. For instance, many vitamins serve as coenzymes, which help enzymes catalyze biochemical reactions that are vital for metabolism, growth, and development.

These substances cannot generally be synthesized in adequate amounts by the body, hence the need for dietary intake. For example, B vitamins are integral to energy production and the synthesis of neurotransmitters, while vitamin C is critical for collagen formation and immune function.

Understanding this role emphasizes that while vitamins do not directly provide energy like macronutrients do, they are indispensable in enabling the body to utilize energy from food and to maintain overall health through their various functions in metabolic pathways. This underscores the significance of incorporating a variety of vitamins through diet to support these essential bodily functions.