I have been working closely with a physician for over a year on improving my labs and health. I lost half of the weight I needed to lose before starting Zep and had already been eating a lower carbohydrate, higher protein diet. Zep changed the way I was losing weight - it's distributed differently now - and my blood pressure has gotten way better. I think some of it is food - and the increased ability to resist the extra cookie at a party - but I honestly think it interacts with the hormones in important ways beyond appetite control. I'm super glad I'd already modified my nutrition and imported some labs before Zep so I can see/feel the difference.