Study results show that a 51-year-old female athlete, while taking the Master Amino acid Pattern (MAP) as a sole and total substitute for dietary protein, and performing physical activity, experienced (1) increased body muscle mass, strength, and endurance; (2) decreased body fat mass; (3) greater increase in performance of the nonprevailing muscles compared to the prevailing muscles; (4) improved cardiorespiratory performance; and (5) increased red blood cells, hemoglobin, and hematocrit parameters. It was concluded, confirming previous findings, that use of MAP as a sole and total substitute for dietary protein, in conjunction with physical activity, provides safer, unprecedented optimization of the body's protein synthesis, thereby improving anthropometric characteristics and physical and physiologic performance.