diet nutrition physique women

Actually, protein intakes above 20% are not recommended based on current research, even for weight lifters. High protein intakes stress your kidneys and do not result in greater muscle gain. I exercise frequently, so I try to eat a diet rich in amino acids. Unfortunately, I don't really know how to tell what amino acids (or how much of them) I get from what I eat. Since food labels don't give us this information, is there another way to find out?