Some of the calories people ingest are used for basal metabolism. As people get old, their bodies require fewer calories for this basic upkeep. Some calories are excreted as waste products. Some go into “work metabolism,” the energy expenditure required for any physical activity.
Hence, if people take in more calories than are used by these functions, there is a definite caloric excess. By the laws of physics, energy is transformed rather than destroyed. In this case, each excess of 3,500 calories is changed into a pound of fat. If people want to reverse this process, they have to burn up 3,500 calories to lose a single pound. And all the while these calories are being burned don't forget the fact that a good colon cleanser can relieve a bit of lower bowel "stuff".
