I tried out breakthru a couple months ago. I LOVED it. You need half of a scoop in water with your breakfast and another half of a scoop in water to have with your lunch. The only con that bothered me is that you cannot have any other source of caffeine so there go your daily coffee/redbull! Since it contains so much caffeine, it greatly replaces what you would get from those other drinks. It suppresses your hunger throughout the day but you should still have at least 4 small snacks. hope this helped!