I was never one for exercising. I was always a wiry little guy in pretty good shape with decent agility and high metabolism. I was always a big eater, a very big eater. But that metabolism kept me wiry for more than 40 years. Then I switched from a standing and moving job to a more sedentary one and in six months had a weight gain of 20 percent. I made an appointment with a dietician and she asked that I keep track of what I ate for the week before our appointment. She gasped when her calculator started smoking as it totaled my average daily intake: 4400 calories.