I read somewhere, it was something like this.
If you consume more energy than you can use it will be stored.
If you consume less energy than you can use it will use fat.
there was another fact if your body fat was 16% and you gained 10pounds of muslce your bodyfat would have drop to about 15% but you havent lost any fat at all just got heavier.
Can you lose fat at the same time as gaineing muslce while bulking up and using gear. I herd you cant do both.