A comprehensive textbook offering a biochemical foundation for understanding clinical medicine. It covers diverse topics from molecular biology and genetics, including gene expression, genomics, proteomics, and metabolomics, to the fundamental structures and functions of proteins, carbohydrates, and lipids. The text also explores key metabolic pathways like glycolysis and the tricarboxylic acid (TCA) cycle, energy production, and the digestion and absorption of nutrients. Furthermore, it addresses physiological processes such as muscle contraction and blood coagulation, along with various diseases and their metabolic underpinnings, including diabetes mellitus, hyperlipidemia, and inherited metabolic disorders.