An increasingly popular fat-blocking The Faith Diet Review prescription drug, despite its undesirable side effects, is Xenicol or Orlistat. This has been approved by the FDA since 1999 for use in weight loss and works by blocking an enzyme in the gut that is needed to digest fat. Instead of being absorbed by the body, up to one third of the fat consumed will accumulate in the intestines and be excreted in the stool.This blocks the absorption of fat-soluble vitamins such as A,D,E and K, and therefore a vitamin supplement needs to be taken. The undesirable side effects can for some people include an oiliness of the stool, and even diarrhea or unexpected fecal discharge or leakage. It must be said also that not everyone agrees that it is fat consumption that is the main cause of obesity anyway. There is a considerable body of evidence and argument that points to carbohydrate, particularly, refined carbohydrate, as being the main culprit. In which case attempts to cut fat absorption would be completely misplaced.There is a possible natural alternative to this type of pill in a plant extract from Caralluma fimbriata.This plant, which has been used in India for centuries as a natural appetite suppressant, also seems to have the ability to block one or more enzymes and hence block the absorption of fat. Several clinical trials of this in the form of Slimaluma have been shown to support this claim.