A lot of people ask me if it's possible to gain strength and size while losing body fat and the answer is YES- it's called carb cycling.
Carb cycling is just that- you cycle high and low carb days depending on your goals and activity level (current and desired). The number of each high or low carb days depends on a lot of factors but mainly your starting point, where you want to be, activity level, etc
High carb days allow our metabolism to rev up, while the low carb days help keep your insulin levels low enough to burn fat while maintaining muscle (source: muscleandfitness.com)
"Think of the high carb days as adding fuel to your calorie burning fire. And on the low carb days, your body will burn fat instead of the usual carbohydrates. This combination allows for maximum fat burning while maintaining muscle.