I got an app on my Ipod to help track my calorie needs, and it gives me an allowance number according to my age, weight height etc (basic BMR).... when i add excercise to it, it adds those calories to my calorie allowance. Now it allow 1400-1500... But i decided to try a higher rated app; that app allows only 1200. And when i look online, they go as high as 2800 a day. The lowest i've seen is 1800. So which number is it to lose weight healthily? lol