gain mass + stay lean

[Icy]

by just maintaining as close as possible to a certain body weight and sticking to a particular calorie intake that is high in protein and low in fat. It in theory will have your body switch back an forth from anabolic to catabolic. You can't gain muscle mass and cut fat at the same time, so you have to do either or.

[Euroholic]

by just maintaining as close as possible to a certain body weight and sticking to a particular calorie intake that is high in protein and low in fat. It in theory will have your body switch back an forth from anabolic to catabolic. You can't gain muscle mass and cut fat at the same time, so you have to do either or.

Thats not true