In general, foods are made up of carbohydrates, proteins, and fats, each of which provide a different number of calories: 1  Carbohydrates provide 4 calories per gram. 2  Proteins provide 4 calories per gram. 3  Fats provide 9 calories per gram.
IMPORTANCE OF WATER. Water is our lifeline that bathes us and feeds us. In ancient cultures water represented the very essence of life. The Romans were the first to pipe water into their growing cities, especially with their aqueducts.
Although water does not provide energy in the same way carbohydrates and fat do, it plays a very important role in energy transformation. Water is the medium in which all energy reactions take place. Therefore, you need to drink a lot of water for health, stamina, fuel, and building muscle. Water is an important aspect of building muscle.