The practice of medicine today is difficult without some understanding of human biochemistry. Often the books that are prepared are intended more for the medical student and chemical student than for the practitioner; such books are too technical for the audience that could use them to considerable advantage. This volume does not provide so much detail that the reader becomes lost in the pages. It offers comparatively brief discussions that can be quickly read and easily understood. Included in the chapters are discussions on physical chemistry, carbohydrates, lipids, proteins, body tissues, milk, blood, enzymes, digestion, chemical changes within the large intestine, vitamins, foods, physiologic oxidations, nitrogen metabolism, carbohydrate metabolism, lipid metabolism, mineral metabolism and water balance, urine, the chemistry of respiration and acid-base balance, energy metabolism, changes in the chemical composition of blood, hormones, and certain clinical applications which involve function tests and other problems of clinical significance.