Fats (Lipids) provide which roles?

• A. Source of energy, provide essential fatty acids, transport vitamins, provide heat insulation, components of cell membranes and myelin, and form protective cushions around organs.
• B. Primary source of energy for rapid bursts
• C. Build bone and teeth
• D. Regulate blood sugar levels

Answer: (A)

Fats serve multiple essential roles that together describe why they’re important in the diet. They provide a dense source of energy and supply essential fatty acids that the body cannot make on its own. They help absorb and transport fat-soluble vitamins A, D, E, and K, which are vital for various body functions. Fats also contribute to heat insulation under the skin and cushion internal organs. Structurally, fats are key components of cell membranes and of the myelin sheath around nerves, supporting cell function and nerve signaling. Because of these broad roles, a description that includes energy, essential fatty acids, vitamin transport, insulation, membranes, and organ protection best captures what fats do.