Along with the reversing of the effects of insulin (and inhibiting the action of insulin) which results in a release of glycogen back into the blood stream as glucose and an inability to store or use more glycogen, it will increase the rate of protein and fat being burned in the body. This thermogenisis and an increase in the rate of fat being burned usually has as a result that the metabolic rate of the subject its much higher and he burns more calories. This in turn results in loss of adipose tissue (the shedding of fat in other words) revealing a leaner physique with cuts and striations. The downside to this effect is that there is a concomitant rise in the rate of protein being burned. Where fat is robbed from the fatty tissue in the body, protein is generally robbed from the muscle. As with all catabolic hormones, in time muscle loss can and will occur. Which is why users should use Clenbuterol together with a healthy full body workout.
Among the other actions of Clenbuterol is an increase in aerobic capacity (facilitated by the easier breathing), a stimulation of the nervous system (facilitated by norepinephrine and acetylcholine release) and thus the skeletal muscle system, an increase in oxygen transportation (facilitated by the increased blood pressure) and an increase in vigil. These characteristics in turn combine to make this drug particularly interesting for athletes doing endurance sports and needing a boost.

