What is the role of dietary fats in exercise?

Dietary fats play a crucial role in exercise beyond just being an energy source. Their function in assisting with vitamin absorption and hormone production is significant. Fat-soluble vitamins (A, D, E, and K) require dietary fats for proper absorption in the intestine, enabling the body to utilize these essential nutrients effectively. Additionally, fats are integral in hormone production, including steroid hormones like testosterone and estrogen, which can influence muscle growth, recovery, and metabolism.

While fats are indeed utilized during exercise, particularly in lower-intensity and steady-state activities, they do not serve as the primary energy source during high-intensity exercise; carbohydrates typically fulfill that role. Regarding calorie contribution, fats actually provide a substantial amount of energy—approximately 9 calories per gram, which is more than carbohydrates or proteins. Therefore, the statement about fats being minimally caloric is misleading in the context of their energy provision.