What is the opposite to bulimia?

The opposite to bulimia is orthorexia. Bulimia is an eating disorder characterized by binge eating followed by purging, while orthorexia is an eating disorder characterized by an excessive preoccupation with healthy eating. People with orthorexia may restrict their food intake to only certain types of foods that they perceive as healthy, and they may become anxious or distressed if they deviate from their strict diet.