What is the protein intake recommendation for athletes engaged in endurance training per kilogram of body weight?

For athletes engaged in endurance training, the protein intake recommendation is significantly higher than the general guideline for sedentary individuals. The range of 1.2 to 1.4 grams of protein per kilogram of body weight is formulated to support the unique demands of endurance training, which includes factors such as muscle repair, recovery, and adaptations to training.

Athletes who participate in endurance sports, such as running, cycling, or swimming, experience muscle breakdown during their activities, which necessitates a higher protein consumption to facilitate recovery and maintain lean muscle mass. This recommendation reflects a balance where adequate protein supports energy needs without overwhelming the athlete's caloric intake.

In contrast, lower protein recommendations, such as 0.8 g/kg or 1.0 g/kg, are sufficient for the general population or those engaged in minimal physical activity, while the 2.0 g/kg level is more applicable to strength training or bodybuilders, where muscle mass gain and repair demands are greater. Thus, the recommendation of 1.2 to 1.4 g/kg is specifically tailored to meet the needs of endurance athletes effectively.