What proportion of total caloric intake should proteins make up?

• A. 5-10%
• B. 10-15%
• C. 15-20%
• D. 20-25%

Answer: (C)

Proteins play a crucial role in various physiological functions, including muscle repair, immune function, and hormone production. The recommended proportion of total caloric intake that proteins should comprise typically falls within the range of 10-35% of total daily calories; however, for general dietary guidelines, a range of 15-20% is commonly suggested for those engaged in regular physical activity.

Selecting 15-20% as the correct answer aligns well with nutritional recommendations for individuals who are moderately active or athletes. This proportion ensures adequate protein intake to support muscle recovery and overall health while allowing sufficient energy from carbohydrates and fats to meet activity demands.

This ratio also reflects the importance of balancing macronutrients to optimize performance and supports the physiological needs associated with physical training. In contrast, lower percentages may not provide enough protein for athletes or physically active individuals, while higher percentages could lead to imbalances or excess-caloric intake.