I have been a carbohydrate junkie all my life, and craved them. I always try to eat clean and healthy, but those carbs kept keeping me on the heavy side in recent years. PGX changed all that for me as the book said, it should take about three days after starting to use PGX to notice a decrease in carb cravings. And it was true to its word! If it works for me, anyone can use it successfully as a healthy supplement to weight loss.