09 Feb 2018 --- Dietary protein supplements do significantly improve muscle strength and size when taken by healthy adults who lift weights, say McMaster scientists who analyzed dozens of research studies. According to the researchers, their analysis puts to rest any debate on whether or not such supplementation is effective. However, the effects are not as big as some supplement companies would have you believe, cautions the senior author on the paper, Stuart Phillips, a professor of kinesiology at McMaster University.
