To increase stamina quickly, players will need to use the gym’s treadmill or stationary bike. However, if CJ does not have any fat when he becomes hungry he will also begin to lose muscle. After 48 in-game hours of not eating, CJ will begin to lose weight fast. To lose fat fast, players can choose to work out at the gym or simply not feed CJ. Getting fatter in San Andreas can impact CJ's relationships and he will lose sex appeal and become slower. To prevent muscle loss in GTA, players will also need to manage CJ’s fat meter.