A major function of fat in the body is to?

A major function of fat in the body is to serve as a concentrated source of energy, providing 9 calories per gram, which is more than double that of carbohydrates and proteins. Fat also plays a crucial role in insulating and protecting vital organs, as well as aiding in the absorption of fat-soluble vitamins (A, D, E, and K). Additionally, fats contribute to cell membrane structure and are involved in hormone production and regulation.