Biochemistry deals with the biochemical relationship between diet and health. This book describes the importance of the nutrients in the human diet, elaborating on the biochemical aspects of each of the important nutrients like carbohydrates, proteins, fats and vitamins. Each category is explained systematically in terms of its function, absorption metabolism, deficiency, treatment and prevention. This book present a succinct account of the essential features of the biochemistry and biotechnology, and is being prepared by keeping in view the requirements of the students and academic professionals.