The psychological disorders wherein people develop abnormal eating habits are referred to as eating disorders. Disorders such as anorexia nervosa, bulimia nervosa, and binge eating disorders are the most common types of eating disorders. There are various physical and behavioral signs of eating disorders. Some common physical signs and symptoms include sleep irregularities, hair loss, stomach cramps, muscle weakness, and poor immune system function. The major behavioral and mental signs include binge eating and purging, intense fear of weight gain, excessive exercise, and preoccupation with weight, food, calories or dieting. Factors such as genetics and biology, and psychological and emotional health may lead to the development of eating disorders. This book includes some of the vital pieces of work being conducted across the world, on various topics related to eating disorders. Such selected concepts that redefine the study of these disorders have been presented herein. Its extensive content provides the readers with a thorough understanding of the subject.