Almost every athlete, weekend warrior, or gym regular wants to build bigger muscles while losing body fat at the same time. This can be a challenging task because the “traditionalists” will tell you that one must sacrifice either definition or gains in muscle.
While it’s easier to focus on one or the other there are a few tricks you can use that will have you on the right track in no time.
First things first… The “Traditional Approach”
To gain muscle a person has to consume more food, protein, carbs, fats, nutrients, and vitamins than they need to get bigger and less overall calories if they wish to get leaner.
This of course is the main reason bodybuilders tend to "Bulk Up" in the off-season.
This means the individual will eat loads of calories in the hopes of gaining more muscle mass. You can find more info on the proper way to go about all this here.