Here's why:
* Chemical Structure: Fats are composed of glycerol and three fatty acid chains. These long hydrocarbon chains contain many carbon-hydrogen bonds, which store a significant amount of energy.
* Energy Density: Fats have the highest energy density of all macronutrients (carbohydrates, proteins, and fats). They provide approximately 9 calories per gram, compared to 4 calories per gram for carbohydrates and proteins.
* Storage Efficiency: The body stores fat efficiently, and it can be easily broken down for energy when needed.
While carbohydrates are the body's primary energy source, fats provide a more concentrated and long-lasting energy reserve.
