I don't know anything about cal. intake other than in order to lose weight you should burn more than you consume. Pop is a killer tho as far as weight is concerned. I quit drinking it. I read that if you cut one can a day you could (potentially) lose 14lbs in a year if you do the cal. calculation. I've also read that by adding 1lb of lean muscle mass you will burn something like 50 cal just by having that muscle, not neccesarily training it.