Fats are primarily used to store energy in the body. When the body has a surplus of calories from the food consumed, the excess energy is converted into fat and stored in adipose tissue. This stored fat can then be used as a source of energy during periods of fasting or low calorie intake. Additionally, fats play a vital role in insulating and protecting organs, maintaining proper brain function, absorbing fat-soluble vitamins, and providing essential fatty acids that the body cannot produce on its own. However, fats are not directly involved in building muscles, as muscle protein synthesis primarily requires the intake of proteins.
