Rumination disorder is a condition in which a person regurgitates undigested food. The food may be chewed a second time and reswallowed or spit out of the mouth. Individuals with this disorder typically engage in regurgitation on a daily basis, and a diagnosis of rumination disorder is given when regurgitation persists for a period of 1 month. According to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, regurgitation in rumination disorder is not due to feelings of sickness or involuntary vomiting and [Page 2910]cannot be attributed to a medical condition. Individuals engage in regurgitation voluntarily but may have difficulty reducing or refraining from regurgitation to meet socially acceptable eating standards. In addition, regurgitation in rumination disorder is not considered the result of another ...