These powders and supplements merely amount to very expensive urine. If you ask elite gymnasts, ballet dancers or runners, they will typically cringe at the thought of meat and advise you to eat as little as possible. Protein is used for building and repairing muscle and tissues, red blood cells, hair and finger nails and for synthesizing hormones.
Protein is necessary for reducing the risk of iron deficiency anemia and to improve healing.
Excess protein does NOT build muscle bulk and strength exercise does. He goes to the local health food store where he is told to increase his protein intake by eating protein shakes at each meal. He then goes to his sports med doctor and sports dietitian who tell him to eat a moderate amount of protein and swim three times a week plus do upper body weights three times a week. For a 150 pound male triathlete I would recommend 0.6 for a total of 90 grams of protein per day. For a 115 pound female high school track runner I would recommend 0.7 for a total of 80.5 grams of protein per day.