A comprehensive scientific review of research, which was published in the British Journal of Sports Medicine, aggregated the results from the best past studies of weight training and protein. What the published review found was that eating more protein — and, as the New York Times reported, “well past the amounts currently recommended” — can amplify “the results of lifting weights, especially for people past the age of 40.” That means larger, stronger muscles and greater strength.
Follow this link to take a look at their write up: Lift Weights, Eat More Protein