Unfortunately, fat and muscle are two different things. One cannot be turned into the other without a miracle. But, it is possible to increase muscle mass, which will help to burn the fat. When you increase muscle mass, you increase the basal metabolic rate or the amount of calories your body needs to burn to maintain itself. One thing to keep in mind is that building large amounts of muscle tissue and decreasing body fat are conflicting goals. To build a significant amount of muscle you will need to take in extra calories so your body has the energy necessary to make tissue. But, to decrease body fat, you will need to burn more calories than you take in. This is why many body builders choose to cycle their weight gain and weight loss into a “bulking” phase and a “cutting” phase. The bulking phase requires an increase in intensity and volume of weight training and cardio may be reduced. When cutting, the calories will be reduced, the intensity and volume of weight training will be reduced and cardio activity will be increased. This cycling can be more efficient when a total goal of increasing muscle mass and decreasing body fat is trying to be achieved.