Metabolic diseases arise when there is an alteration in the normal metabolic process caused due to abnormal chemical reactions in the body. The symptoms of metabolic diseases can be classified into four categories, namely, acute symptoms, permanent symptoms, late-onset acute symptoms and progressive general symptoms. However, some of the most common symptoms include jaundice, weight loss, seizures and lethargy. Enzyme deficiency caused due to a defective gene, and problems in the functioning of the liver or pancreas are some common causes of metabolic diseases. Diagnostic methods include routine screening, specific blood tests and DNA tests. Nutrition management is a common and effective strategy to treat metabolic diseases. This book attempts to understand various metabolic diseases and their causes along with the ways to diagnose and treat them. It brings forth some of the most innovative concepts and elucidates the unexplored aspects of metabolic diseases. The book is appropriate for students seeking detailed information in this area as well as for doctors and researchers.