Ephedra is a natural plant extract, too. It grows wild all over the place where I live. The fact that it's a natural plant extract doesn't make it safe; cyanide and ricin are also natural plant extracts.
Chitosan (which comes from the shells of shrimp and crustaceans, so it's an allergy risk) and Garcinia cambogia actually don't block fat absorption. It's just not true. If you listen carefully to Oz, he almost always says "This is really promising!" rather than actually saying it works. Or he lets the guests (who are lying because they sell it) say that it really works and he doesn't contradict them. Chitosan is actually starting to look like a fabulous replacement for pesticides and fungicides on plants, it may help prevent blood disorders in dialysis patients, and it increases absorption of Vitamin K (which sounds good but can actually be very dangerous) but there's no evidence that it does anything at all for weight loss. www.ncbi.nlm.nih.gov/pubmed/10369493
Garcinia cambogia doesn't work, either: www.ncbi.nlm.nih.gov/pubmed/9820262
As for the bean extract, carbohydrates don't "turn into fat." Any excess calories you eat may be stored in the body as fat, but your body makes that fat and no supplement can stop it. I think probably the claim they make is that the extract "blocks absorption of carbs," but that's not really true, either. Fiber does that a little, though, so actually *eating* white beans as part of your meals would be a much better way to lose weight! Or black beans, or red beans. They have all kinds of health benefits as well as making weight loss a little easier for most people.
And that's the way it goes with most things that are sold as "natural supplements." If you eat the actual plant, you'll get the "extracts," so if those extracts work, food is a better way to get them than dehydrated in a capsule. And if those extracts don't work, if you eat the food, you get other nutrients from it and don't have to buy other groceries, so you're not wasting your money.
| current weight: 132.0