What vitamin is essential for the formation of collagen?

The correct response is Vitamin C, as this vitamin plays a crucial role in the synthesis of collagen, a vital protein that provides structure to skin, cartilage, tendons, ligaments, and blood vessels. Vitamin C acts as a cofactor for the enzymes prolyl and lysyl hydroxylase, which are necessary for the post-translational modification of collagen molecules. These modifications are essential for the stability and strength of collagen fibers, making Vitamin C indispensable for proper wound healing and overall skin integrity.

While Vitamin A is important for vision and immune function, it does not have a direct role in collagen formation. Vitamin D is primarily involved in calcium metabolism and maintaining bone health, and it does not influence collagen production. Vitamin K is essential for blood clotting and bone metabolism but is not directly related to collagen synthesis. Thus, Vitamin C stands out as the key vitamin in the formation of collagen.