This book addresses the issue of anorexia in sports. It primarily focuses on potential triggers as well as the health consequences and problems that arise from the condition of Anorexia Nervosa in general, and specifically for athletes in the form of Anorexia Athletica, even though this variant is not yet widely recognized as a disease. The health consequences of anorexia result from disturbances in various organ systems in the human body. An imbalanced hormonal system, deficiencies in minerals or vitamins – all of these can weaken the body either individually or multifactorially. In addition to the physical symptoms, the psychological comorbidities of anorexia are undoubtedly of fundamental importance for emotional well-being or distress.