What are the types of eating disorders?

Eating disorders come in more forms than just anorexia or bulimia. In this video, Dr. Oz talks to guests about their addictions to eating things like chalk and cigarette ash.

• Anorexia -- typically involves an extreme fear of gaining weight or a dread of becoming fat. Even though these individuals may be very thin or even extremely underweight, they see themselves as "fat." They may attempt to reach or maintain what they think is their perfect body weight by literally starving themselves. They may also exercise excessively. Others may eat excessive amounts of food in one sitting and then attempt to get rid of the food and calories from their bodies by forcing themselves to "throw up" or by the misuse of laxatives or enemas.
• Bulimia -- also includes the fears of being overweight. But it also includes hidden periods of overeating (binge eating) which may occur several times a week or even several times a day. While overeating, individuals may feel completely out of control. They may gulp down thousands of calories often high in carbohydrates and fat -- in amounts of food that would be greater than what an average person would eat at one sitting. After they overeat, the individuals try to "undo" the fact that they ate too much as quickly as possible by forcing themselves to "throw up" or by the misuse of laxatives or enemas. This is often referred to as "bingeing and purging."
• Binge eating or compulsive overeating -- may affect almost as many men as women. In the past, these individuals were sometimes described as "food addicts." They overeat (binge eat) as noted in bulimia above, but do not regularly try to get rid of the food immediately by throwing up or by misusing laxatives or enemas. Feelings of guilt may make it easier for the person to overeat again.