Protein intake varies significantly between sedentary individuals and athletes. Athletes require higher protein levels to support muscle repair, growth, and recovery, often aiming for 1.2 to 2.0 grams of protein per kilogram of body weight. Sedentary individuals generally need less, around 0.8 grams per kilogram. Adequate protein is essential for everyone, but athletes have heightened demands due to intensive training and performance goals. Balancing protein intake with overall dietary needs is crucial for optimal health.