well i was taking 500mg a day but i have stopped again i only took it for about a month and it did work wonders , but then i read that if u use it on a day to day basic it can cause damage to ur calcium and fosfor in ur body so now i have stopped again , untill i know for sure if its good or bad ...it says on my box that for constipation u can take 1000 - 1500 when u need it ...Im trying aloe vere juice now to see if that works