I have been watching this board for a while and getting some good info off of it. But I have a question. How do you know how many calories to eat that fits your lifestyle? I have read AMR, BMR, weight x 12-16...with your diet being so important how do you know what is right for you? I am 36 year old firefighter. 220 6'2" If I had to guess maybe 18% bf. I do cardio 3x a week at least, I have 10 acres I work on all the time. I wore my monitor the other day and my heart was getting around 150 so is that considered cardio? I work for the fire dept 24 on and 48 off. On my days off I work for a man that erects steel buildings. I have read that I need 2500 calories a day to lose weight. With the work I do I really dont think that is enough. So all this to ask what is the way to find out exactly what I need a day to have enough energy to work but to lose my gut? Thanks The red head fireman....