yes u will want to drink a lot of water. it will give u the runs so stay away from fast food, greasy food, eat lots of greans with it because it will help with the bathroom issue i have been on it for 7 yrs i think i take it for diabeties. and if ur like me who likes burgar king then just eat it in moderation lol or u will live on the toilet like me lol. and gook luck with it