Which vitamin is necessary for the structural integrity of cell membranes?

Vitamin C plays a vital role in maintaining the structural integrity of cell membranes by contributing to the synthesis of collagen, an essential protein that helps form and maintain the structure of tissues, including those that compose cell membranes. Collagen fibers provide strength and elasticity, ensuring that cell membranes remain intact and functional.

While the other vitamins listed play important roles in various bodily functions, they do not primarily focus on the structural integrity of cell membranes as Vitamin C does. For example, Vitamin B12 is crucial for nerve function and red blood cell formation, Vitamin B9 (folate) is important for DNA synthesis and cell division, and Vitamin B6 plays a role in amino acid metabolism and neurotransmitter synthesis. However, none of these vitamins directly contributes to the structural aspects of cell membranes in the way that Vitamin C does.