These days you hear a lot of talk about how to increase protein synthesis or the fractional synthetic rate. This is the rate at which your muscle cells are making new contractile proteins, and the general theory is that the higher this rate, the more muscle you will build. Leucine, BCAAs, whey protein, and lifting weights are just a few of the things that will stimulate protein synthesis.
Unfortunately, protein synthesis is not all that is required to build muscle. In order for you to build ANY net muscle mass….