Tag: Nutrient energy

A single gram of fat contains 9 calories, more than double the energy density of carbohydrates and protein, which both contain 4 calories per gram. Understanding which nutrient is able to produce the most energy is key to fueling your body efficiently, but the highest energy yield per gram doesn't always mean it's the body's go-to fuel source for every situation.

A single gram of fat contains 9 calories, more than double the energy content of carbohydrates or protein. To answer the question of which nutrient provides the most energy, one must understand both the caloric density of macronutrients and how the body utilizes each for fuel.