it took me a year on and off i was off for like 4 mounths but back at it i droped 13% bf i was off it for a wile i was in the hospital i took some winny tabs might not have been real? and it messed up my intestans i could not eat or drink anything for 6 days just an I.V what a pain but now im back on diet alot of egg whits and tuna im use to it now so its not so bad some times i feel alil weak from no sugar but other than that all good!