Vitamins involved in energy metabolism include B vitamins, such as thiamin (B1), riboflavin (B2), niacin (B3), pantothenic acid (B5), and vitamin B12. These vitamins assist in converting carbohydrates, fats, and proteins into usable energy for the body. Additionally, vitamin D may indirectly influence metabolism by affecting muscle function and overall energy levels. Ensuring the body has adequate levels of these vitamins is essential for optimal energy production, overall performance, and the body's ability to carry out daily activities efficiently.