Is too much protein harmful?+
For healthy individuals with normal kidney function, high protein intake (up to 2.4 g/kg/day) is generally safe. Those with kidney disease should consult a doctor. Very high intakes (3+ g/kg/day) have limited additional benefit for muscle building.
Should I calculate protein based on total weight or lean mass?+
For overweight individuals, calculating protein based on goal body weight or lean mass is more accurate. Using total body weight for someone with high body fat can overestimate protein needs significantly.