Human nutrition
The protein requirement for each individual differs, as do opinions about whether and to what extent physically active people require more protein. The 2005 Recommended Dietary Allowances (RDA), aimed at the general healthy adult population, provide for an intake of 0.8 grams of protein per kilogram of body weight. A review panel stating that "no additional dietary protein is suggested for healthy adults undertaking resistance or endurance exercise."
High-protein diet
While elevated amounts of protein consumption are beneficial during athletic training, particularly when attempting to gain muscular mass and strength, there is little evidence of any benefit from increasing protein intake above an intake level of 2g/kg bodyweight/day.