Rumination (eating disorder)
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Rumination is an eating disorder characterized by having the contents of the stomach drawn back up into the mouth, chewed for a second time, and swallowed again.
In some animals, known as ruminants, this is a natural and healthy part of digestion and is not considered an eating disorder. However, in other species (including humans), such behavior is atypical and potentially dangerous as the esophagus can be damaged by frequent exposure to stomach acids.
Rumination is also associated with eating disorders such as anorexia nervosa, and can be the result of one's apprehension and nervousness after eating a normal meal. For those with purging behaviors, rumination can take place when the option of getting rid of a meal via throwing up is not available (thus, one might feel worried and visibly upset).
Rumination has also been reported in developmentally normal children and adults who experience regurgitation of previously swallowed food, without disgust, nausea or an acidic taste. The food is either chewed and reswallowed or spitted out. Remission of these episodes is seen in some cases while others persist. Many claim this as a pleasurable habit. No untoward effect is noticed in many cases.
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