One of the latest gimmicks to help you lose fat is to ingest certain proteins that attach to carbohydrates to prevent them from breaking down and thus be eliminated from the body. This may be effective for some fat loss, but most often people who take such supplements wind up eating more fat in the belief that it will not be absorbed in the body. Thus they defeat the purpose for taking them in the first place.
In addition, if you do not exercise at a level that burns the fat or participate in activities that burn fat or do not limit the kinds of fat that you eat, especially saturated fat, then you will never have effective fat loss. People who think that they will effectively lose fat by taking such products are fooling no one but themselves, and paying a hefty price for it at the same time.