What is the function of Vitamin C?

Vitamin C, also known as ascorbic acid, plays a crucial role in various physiological functions. One of its primary functions is to support the immune system, helping the body to fend off infections and illnesses. Additionally, Vitamin C is essential for the absorption of iron, particularly non-heme iron found in plant foods. By enhancing the bioavailability of this type of iron, Vitamin C helps prevent iron deficiency and anemia.

Moreover, Vitamin C acts as a powerful antioxidant, protecting cells from damage caused by free radicals, which can contribute to chronic diseases and aging. While it is important for skin health—contributing to collagen synthesis and overall skin integrity—the most defining roles of Vitamin C center on its immune support and iron absorption capabilities. This comprehensive range of functions is why the answer highlighting both immune support and iron absorption is indeed the most accurate.