A common mistake regarding fat loss steroids and steroids in general for that matter is that if you use them results will happen all on their own. Much of this ridiculous way of thinking is due to the manner in-which steroids are perceived by popular culture; as dark substances from a mystical land of evil. The fact of the matter is, if you are using fat loss steroids, if your diet is not that of a calorie deficiency, meaning you are burning more calories per day than you are taking in, then you wont lose fat. You still have to diet and train/exercise; steroids can simply help you burn more fat than you would otherwise, they are not magical.
The simple answer here is that it boosts your metabolism . It accelerates how you burn up the calories you consume. So if you go on a diet, you limit your calorie intake. When you work out, you increase your calorie use. That means it’s much more likely that you’ll have fewer calories for your energy needs. To compensate, your body will then burn up your fat cells for energy. That’s the biological purpose of fat cells in the first place. They’re reserve power. Clenbuterol simply makes it more likely that you’ll need that power so you burn the fat cells and become slimmer.