Fats are one of the three main macronutrients and are essential for health, performing several critical functions in the body.
Energy Storage: Fats are the body's most concentrated source of energy, providing 9 calories per gram. They serve as a long-term energy reserve.
Insulation and Protection: A layer of fat under the skin helps to insulate the body against cold, while fat deposits around vital organs provide a protective cushion.
Absorption of Vitamins: Fats are necessary for the absorption and transport of fat-soluble vitamins: A, D, E, and K.
Hormone Production: Cholesterol, a type of fat, is a precursor for producing essential steroid hormones like estrogen and testosterone.
Cell Structure: Fats are a fundamental component of cell membranes, helping to maintain their integrity and function.