2g/kg or 1g/lb: 2 grams of protein (typically whey protein if you are purchasing protein shake as a dietary supplement) per kilogram of body weight. There are about 2.2 kilograms per pound, so divide your weight by 2.2 and multiply by 2 to get a "grams per day" amount for building lean muscle. If you hate math, this calculation equals approximately 1g protein per pound of body weight.
Answered 3/18/2015
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