I've (still!) got around 4 stone to lose. If I select lightly active then mfp gives me 1700 calories a day to lose 1lb a week. This feels doable but too good to be true. I've got a fitbit and if I do around 8000 steps a day it says I've burned 2200 so that should give me my deficit of 500 a day. It's a whole new appoach for me as I tend to try and eat way less but then I feel deprived and start binging. So minimum 8000 steps and 1700 cals. Can it possibly work?