What are the main functions of vitamin C?

The main functions of vitamin C, also known as ascorbic acid, prominently include its role in the synthesis of collagen, which is crucial for building and maintaining healthy bones, teeth, skin, and connective tissues. This essential nutrient contributes to the structural integrity of these tissues, as collagen is the most abundant protein in the body. In addition to its structural benefits, vitamin C is vital for the proper functioning of the immune system, enhancing the body's ability to fight off infections.

While maintaining cardiovascular health, supporting digestive health, and building muscle and increasing energy are important aspects of overall health, they do not directly align with the primary roles of vitamin C. The vitamin’s antioxidant properties and its involvement in various metabolic processes support these broader functions but are secondary compared to its core contributions to connective tissue strength and immune defense.