This book discusses the principles and practices of dietotherapy in Unani system of medicine. Despite the fact that every scholar has described and considered diet therapy as an important treatment modality, but it is scattered across various books. For this reason, the students and practitioners have been unable to reap the benefit of this important topic and put it into practice. This book is organized primarily into three sections. The first section explains the basic principles of dietotherapy. The second section contains detailed information on 117 different foods. The third section includes dietary recommendations from the perspective of Unani Medicine in 168 different diseases.