Fats have several important functions in your body – they are the building blocks of your cells, they regulate the metabolism, absorption, and transport of fat-soluble vitamins A, D, E, and K (learn more about the vital role of vitamin D), they are involved in hormone production, and they provide insulation.
Fats are also your body's main energy reserve, and they have one very distinct benefit – they taste good, contributing to the aroma and texture of your meals.