Ok, I know 2 folks who have taken this: my skinny sister and my best friend's sister. My sister said the reccommendations on the package were to eat around 1200 cals a day in order to keep from getting sick. My whole thought is that if you eat 1200 cals a day you don't need any extra fat cut and you'll still lose weight. Maybe this drug is supposed to make you stay away from fatty foods because you dread the bathroom experience that will be sure to follow, but I don't need the threat of diarrhea to keep me from fatty stuff...it's been out of my diet so long I don't even enjoy it. My best friend's sister did NOT follow the dietary guidelines and said she learned every bathroom on her college campus because of that drug. Surprise! Explosive diarrhea time! She also had lots of orange stained underwear if ya know what I mean. I wouldn't do it personally...I'm waiting for a starch blocker