5. Rumination disorder
Bulimia isn’t actually the only eating disorder that involves the expelling of food that’s already been consumed. And much like bulimia, rumination disorder can cause serious physical damage, including malnourishment, electrolyte imbalances, and damage to the teeth and gums.
“Rumination disorder occurs when a person repeatedly eats food that is then effortlessly and painlessly regurgitated in the absence of any medical and gastrointestinal conditions for more than one month,” Mica says. The person will then rechew, swallow, or sometimes spit out the regurgitated food, she says.
