Human nutrition
The protein requirement for each individual differs, as do opinions about whether and to what extent physically active people require more protein. The 2005 Recommended Dietary Allowances (RDA), aimed at the general healthy adult population, provide for an intake of 0.8 grams of protein per kilogram of body weight. A review panel stating that "no additional dietary protein is suggested for healthy adults undertaking resistance or endurance exercise."
Cecile Hoover Edwards
Edwards, in addition, also partook in a study that assessed the extent to which the body responds to lacking amounts of necessary proteins via intake. The results supported the conclusion that the body compensates for how much protein is added; for example, when the minimal protein intake was met, the body responded by conserving methionine catabolism. And additionally, when certain amino acids were lacking, they were synthesized as well as reused, in lieu of excretion. Edwards concluded overall that around 46 grams of protein a day are required in the continued maintenance of the adult male. She also made note that wheat-based diets do provide adequate dietary supplementation, which is an important conclusion given that the geography of various places in the world cause those places to be heavily wheat-based.