A new FDA approved weight loss drug is proving to be very popular.
ALLI is designed to block the body's consumption of fat. The manufacturer guarantees it will block up to 25 percent. But they also warn users it can cause stomach problems.
"If you watch your diet like you're normally going to do anyway you're not going to have any of the adverse side effects like the loose stool and that sort of thing," says one user.
As with any diet or exercise program, it's recommended you consult your doctor first.