This is just what I consider to be a good minimum daily protein intake for general health/function. 0.5-0.7 grams of protein per pound of body weight. Average healthy adult (male or female) that IS doing some form of exercise regularly or IS trying to improve their body (lose fat, build muscle, etc.). This is the minimum I’d recommend in this case. 0.8-1 grams of protein per pound of body weight.