How many calories are in one gram of fat?

How many calories are in one gram of fat?

• A. 9
• B. 4
• C. 7
• D. 6

Answer: (A)

Fats are the most energy-dense macronutrient, providing about 9 calories per gram. This higher energy yield comes from the way fat molecules are oxidized in the body, releasing more energy per gram than other macronutrients. In comparison, carbohydrates and proteins give roughly 4 calories per gram, and alcohol provides about 7 calories per gram. So the number that corresponds to fat’s energy content is 9, which is why it’s the best answer for how many calories are in one gram of fat.

Fats are the most energy-dense macronutrient, providing about 9 calories per gram. This higher energy yield comes from the way fat molecules are oxidized in the body, releasing more energy per gram than other macronutrients. In comparison, carbohydrates and proteins give roughly 4 calories per gram, and alcohol provides about 7 calories per gram. So the number that corresponds to fat’s energy content is 9, which is why it’s the best answer for how many calories are in one gram of fat.