The reason I ask is that I went on a diet, starting about 40 days ago. I aimed to lose 2.5 stone in just under a year. something like 1/2 pound or a pound a week was the target I set. In that last 40 days, I've lost 19 pounds. Its great, and im pleased, dont get me wrong, but I read today that a pound of fat is equivelent to 3500 calories. I know that in removing it we also lose some other tissue, but it still doesnt explain why im losing my weight as quickly as I am. On typical day, like today, I have limited my diet to 1400 calories. Now, im not that active, but im not bed bound, and sometimes I do get out, to the shops or whatever. So I probably need about 1600-1700 calories, thats my guess anyway... So, if i am only short by 200-300 calories a day, how come i am losing roughly 1/2 pound a day on average? Some days more, some days less. I just wonder if maybe its not just me, and because of ME, we require more calories a day - 500 or 1000 more, or something like that. Anyone got a clue?