The optimal protein requirement for non-dieting athletes seeking to gain muscle mass (lean bulking or maintaining) is in the range of 1.7 g/kg - 2.2 g/kg (~0.8 g/lb - 1g/lb). well trained bodybuilders with more than 3 years of resistance training found the optimal range of protein intake to be in this same range.For dieting athletes, an elevated protein intake is advantageous for preserving lean mass - slightly higher protein intake of 2.3 - 3.1 g/kg (~1 - 1.4g / lb) of fat free mass.

The optimal protein requirement for non-dieting athletes seeking to gain muscle mass (lean bulking or maintaining) is in the range of 1.7 g/kg - 2.2 g/kg (~0.8 g/lb - 1g/lb). well trained bodybuilders with more than 3 years of resistance training found the optimal range of protein intake to be in this same range.For dieting athletes, an elevated protein intake is advantageous for preserving lean mass - slightly higher protein intake of 2.3 - 3.1 g/kg (~1 - 1.4g / lb) of fat free mass.

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