Sedentary people will have different protein requirements than more active people if muscle building is the goal. That and exercise stimulates growth.....as seen when you put one arm in a cast and eat all the protein you want, one arm is normal (muscles were used) and one is deteriorated.
While I do agree the amount of protein needed daily is much less than most people think with the bodybuilding mentality....not buying the age old myth of you can only digest and use 30g of protein per meal (especially when it is whole foods that takes hours to digest and assimilate).
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