Synopsis The snacks included in this easy-to-handle guide are not only low calorie and nutritious, but quick and easy to make. Though the word 'Calorie' is mentioned by almost all the age groups, sex and status, but few people really understand that what this term is referring to. Calorie is a measuring unit of heat energy. In our body, this heat is generated by many processes, which are mainly oxidation processes of Protein, carbohydrate and fats. In the introductory chapter, the author has quantified calorie values of various ingredients and suggested ways to keep the calorie content low.