The important Third Edition of this successful book conveys a modern and integrated picture of metabolism and metabolic regulation. Explaining difficult concepts with unequalled clarity, author Keith Frayn provides the reader with an essential guide to the subject. Covering topics such as energy balance, body weight regulation and how the body copes with extreme situations, this book illustrates how metabolic regulation allows the human body to adapt to many different conditions. Changes throughout the new edition include: Frayn has written a book which will continue to be an extremely valuable tool for scientists, practitioners and students working and studying across a broad range of allied health sciences including medicine, biochemistry, nutrition, dietetics, sports science and nursing.