Which nutrient is responsible for storing energy and cushioning organs?

Fats are the nutrient responsible for storing energy and providing cushioning for organs. They are essential for the body as they serve multiple functions, including acting as a reserve of energy. The energy density of fats is higher than that of carbohydrates and proteins, making them an effective means of energy storage.

Additionally, dietary fats are vital in protecting vital organs by providing a cushioning effect. This is particularly important for organs such as the kidneys and heart, where fat deposits help to absorb shocks and prevent injury. Furthermore, fats play a crucial role in the absorption of fat-soluble vitamins (A, D, E, and K) and are involved in various signaling processes within the body.

While proteins and carbohydrates also play important roles in the body, they do not primarily serve the functions of energy storage and organ cushioning to the extent that fats do. Vitamins, on the other hand, are essential for various biochemical functions but do not contribute directly to energy storage or physical protection. Thus, fats are the clear choice when it comes to energy storage and cushioning organs.