Background :Weight Lifters often manipulate dietary protein to build muscles, and one dietary approach is a High-Protein Ketogenic Diet (HPKD). However, very little research has been conducted on the effects of a high-protein ketogenic diet on strength training performance and muscle building outcome goals. Therefore, the purpose of the present study is to investigate whether a high-protein ketogenic diet (HPKD) is an effective strategy to decrease fat mass (FM), and maintain lean body mass (LBM) without compromising strength training performance in recreational, weight lifters.