Alli is a diet drug that is available today over the counter. Alli is a reduced strength version of a prescription only pill called Orlistat. Orlistat works by preventing the body from absorbing all of the fat that a person has consumed (an estimated 50%). That sounds good. Right? If the body doesn't absorb the fat, then it doesn't absorb the calories that you've consumed through fat. Fat is higher in calories than protein or carbohydrates. Each gram of protein or carbohydrates, holds 4 calories. Each gram of fat holds more than twice that at 9 calories. So then by taking alli, consuming fat isn't as calorically expensive. If I eat the same number of calories and take alli, I'll reduce the number of calories that my body absorbs, thus giving me a calorie deficit; which is what is needed in order to lose weight. Well, thinking about it, where Read More . . .