GNB3 and Obesity: Some of the variants that have recently been studied in relation to the power-athlete relationship include Angiotensin II receptor, type 2 rs11091046 (AGTR2), Fat Mass and Obesity-Associated rs9939609 (FTO), N-acetylgalactosaminyltransferase-like 6 enzyme rs558129 (GALNTL6), Guanine nucleotide-binding protein beta polypeptide 3 rs5443 (GNB3), Monocarboxylate transporter 1 rs1049434 (MCT1), Nitric oxide synthase rs2070744 (NOS3) genes.