Which nutrient is essential for energy metabolism and DNA synthesis?

The correct answer focuses on B vitamins because they play a crucial role in energy metabolism and DNA synthesis. B vitamins, such as B1 (thiamine), B2 (riboflavin), B3 (niacin), B5 (pantothenic acid), B6 (pyridoxine), B7 (biotin), B9 (folate), and B12 (cobalamin), are involved in various biochemical reactions that convert carbohydrates, fats, and proteins into energy.

Additionally, certain B vitamins are vital for the synthesis of nucleic acids, which are necessary for DNA formation and repair. For instance, folate (B9) is directly involved in the synthesis of DNA and RNA, making it integral to cell division and growth. Similarly, B12 is essential for the proper functioning of red blood cells and the maintenance of the nervous system, directly linking it to energy metabolism as well.

In contrast, while Vitamin C is important for collagen synthesis and has antioxidant properties, it does not play a direct role in energy metabolism or DNA synthesis. Vitamin D is best known for its role in calcium metabolism and bone health, rather than in energy production or DNA processes. Vitamin E primarily acts as an antioxidant and is not directly