Fat provides the body with energy and insulation.

* Energy: Fat is a highly concentrated source of energy, providing more than twice the calories per gram than carbohydrates or protein. The body stores fat as a reserve energy source, which can be broken down and used for fuel when needed.

* Insulation: Fat acts as an insulator, helping to keep the body warm by trapping heat. This is particularly important in cold environments. Fat also cushions and protects vital organs.

Other functions of fat:

* Hormone production: Fat is essential for the production of certain hormones, including estrogen and testosterone.
* Cell structure: Fat is a component of cell membranes, which are essential for cell function.
* Absorption of vitamins: Fat helps the body absorb certain vitamins, such as vitamins A, D, E, and K.