Anorexia Nervosa – Severe food-restriction and sometimes extreme exercising and other purging behaviors. 

Bulimia Nervosa – Occurs when someone is repeatedly binging on large amounts of food and then purging it. Purging behaviors include forcing oneself to throw up, over-exercising, and using diet pills and laxatives. 

Binge Eating Disorder – Episodes of binging on large amounts of food. When someone consumes an excessive amount of food within a period of two hours. 

Pica – Involves eating things that are not considered to be food. 

Purging disorder – Often use purging behaviors, such as vomiting, laxatives, diuretics, or excessive exercising, to control their weight or shape. However, they do not binge.