Dear, I tell you responsibly that you don't eat anything except this enzyme, and you will definitely lose weight. The same enzyme can be replaced by any diet food, but how long can you last? Never eat for a lifetime? Do you only eat meal replacement? Impossible, right? Human instinct is to eat. Don't fantasize about how long you can last, just resume your diet and rebound in minutes! (from a fat man who has been losing weight for many years)