how much protein do you need to build muscle
1 The RDA (recommended dietary allowance) for protein is 0.8 grams per kilogram of body weight of adults (or roughly 0.36 grams per lb of body weight). 2  Or I have also seen advised that women need at least 46 grams of protein per day, and men need at least 56 grams of protein per day (to avoid deficiency).