Which nutrient provides the body with the most energy for active athletes?

Which nutrient provides the body with the most energy for active athletes?

• A. Fat
• B. Protein
• C. Glycogen
• D. Carbohydrates

Answer: (D)

When athletes need quick, readily available energy, carbohydrates are the key source. They’re rapidly broken down into glucose, which muscles use to fuel activity. Stored in muscle and liver as glycogen, carbohydrates can be mobilized quickly to maintain energy during exercise, especially at higher intensities. Fat provides a larger amount of energy per gram but requires more oxygen and is tapped more during lower-intensity or longer-duration activity, making it less efficient for immediate energy needs. Proteins mainly support tissue repair and metabolic functions, not as a primary energy source during exercise.

When athletes need quick, readily available energy, carbohydrates are the key source. They’re rapidly broken down into glucose, which muscles use to fuel activity. Stored in muscle and liver as glycogen, carbohydrates can be mobilized quickly to maintain energy during exercise, especially at higher intensities. Fat provides a larger amount of energy per gram but requires more oxygen and is tapped more during lower-intensity or longer-duration activity, making it less efficient for immediate energy needs. Proteins mainly support tissue repair and metabolic functions, not as a primary energy source during exercise.