Which of the following is NOT a function of fat in the body?

Fats play several critical roles in the body, including cushioning organs, providing heat insulation, and enhancing the flavor of foods. However, building muscle is not a function of fats. Muscle growth is primarily achieved through the action of proteins, which are essential for muscle repair and growth following exercise. While fats provide energy and support various bodily functions, they do not directly contribute to the process of building muscle tissue. Therefore, the choice indicating that building muscle is not a function of fat is correct, as it highlights the distinction between the roles of fat and protein in the body’s physiology.