This book provides a comprehensive study of carbohydrate metabolism, focusing on the biochemical processes involved in the breakdown and synthesis of carbohydrates. It introduces key pathways such as glycolysis, the citric acid cycle, and gluconeogenesis. The text explains how cells generate energy from carbohydrates and regulate metabolic processes under different physiological conditions. It also discusses the role of enzymes, hormones, and cellular mechanisms in maintaining metabolic balance. Clinical aspects, including metabolic disorders and their biochemical basis, are highlighted to provide practical relevance. By combining theoretical knowledge with biological applications, the book serves as a valuable resource for students and professionals in biochemistry and life sciences.