What are calories?

"Millions of people are calorie-conscious. They measure the number of estimated calories contained in their meals primarily because they wish to lose weight or avoid gaining it. But many of these people miss the big picture, the fact that regular exercise is as important as caloric discipline. This book explains the ins and outs of calories for young children. It describes the sources of calories, daily calorie needs, the meaning of 'empty' calories, and the problems that can result if someone eats too many of them. Your readers will understand the need to balance caloric intake with exercise"--Provided by the publisher.