Why is xenical not effective for some-one on a low fat diet

Xenical works by blocking the absorption of fat from the gut into the bloodstream. If does not affect your hunger. It is useful for people who might eat high fat foods like double cheesburger with bacon or a pound of spare ribs. The fat in these foods simply leaves the gut and the calories are lost. If you eat a low fat diet, then the Xenical has nothing to work on but of course you are much healthier . There are many unpleasant side effects to Xenical which I will leave up to your imagination.