My logic is that if I am to lose weight the mass of material entering my body must be less than the mass of material exiting my body. Never mind Calories. My procedure is this, before each meal I weigh myself. If I weigh less than my immediate goal then I eat, if not then I don't. After each meal I subtract 0.1 lb from my immediate goal. The way it's been going so far, from a practical standpoint, is that I've been eating 2 meals a day. I drink a lot of water to keep my stomach full so I don't feel the hunger so much. I'm more conscientious about the nutritional value of the food I do eat, since I'm aware that I'm not eating as much and I don't want to be malnurished. And I often spend a lot of time on my treadmill before supper loosing H20 as sweat and carbon as CO2 so that the scale will tell me I can eat supper. So far I've lost 4 pounds. My question is, why do people count Calories? What I'm doing seems to be working pretty well, but there must be a downside or everyone would be doing it. Mass in < mass out seems more obvious to me then Calories in < Calories burned so I'm sure it's not an original idea. Why was it previously discarded in favor of Calorie accounting?