A professional bodybuilder is an athlete who competes in bodybuilding competitions, showcasing their muscular development and physique. They follow strict training regimens and nutrition plans to build muscle mass and achieve low body fat levels. Competitions often involve posing routines, where bodybuilders display their strength and aesthetics to judges. To succeed, professional bodybuilders often dedicate years to training and may use supplements to enhance their performance. They participate in various events, such as the Mr. Olympia competition, which is one of the most prestigious titles in the sport. Bodybuilders also promote fitness and healthy lifestyles through their work.