Food Rumination Syndrome

Rumination syndrome is a condition in which people repeatedly and unintentionally spit up (regurgitate) undigested or partially digested food from the stomach, rechew it, and then either reswallow it or spit it out. Because the food hasn’t yet been digested, it reportedly tastes normal and isn’t acidic, as vomit is.


Cluster Number:
Wiki Number: PW190
Diagnosis: (Food) Rumination Syndrome
US Patients: 10% of institutionalized infant or child mental disabilities
World Patients:
Sex Ratio: B;G+
Age Onset: Age 11, boys; age 14, for girls.
Brain Area: This appears to be involuntary, not consciously caused by the person.
Symptoms: in children and those with cognitive disabilities, regular regurgitation of meals by involuntary contraction of abdominal muscles
Progression: Unlike normal vomit, the process is normal and unforced. Damage to the esophagus and alimentary canal, malnutrition, weight loss
Causes: Undecided.
Therapies: For children or limited intelligence, a sour or bitter taste on the tongue is aversion training. Abdominal breathing helps others.


The world-wide medical research
reports chosen for each diagnosis 

Clicking each title opens the
PubMed article’s summary-abstract.

  • Rumination Disorder
    by Alexander Kusnik on January 1, 2022

    Rumination syndrome is a functional gastrointestinal disorder defined as the effortless regurgitation of recently ingested food from the stomach back into the oral cavity in the absence of organic disease. The regurgitation usually occurs within the first 15 minutes after the completion of a meal. A simultaneous remastication and expectoration or re-swallowing of indigested food is commonly observed and can continue for up to two hours after each meal.

  • Eating Disorders
    by Palanikumar Balasundaram on January 1, 2022

    Eating disorders are defined as the disruption in the eating behavior with excessive concern about body weight that impairs physical health or psychosocial functioning. Eating disorders can present as severe psychiatric illnesses associated with high rates of morbidity and mortality. The fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) has changed the terminology “Eating disorders” to “Feeding and Eating Disorders.” DSM-5 mentions eight categories in feeding and...

  • Prevalence, symptoms and risk factor profile of rumination syndrome and functional dyspepsia: a population-based study
    by Mudar Zand Irani on October 9, 2021

    CONCLUSION: Rumination syndrome overlaps with FD with a shared risk factor profile, suggesting a common pathophysiology.

  • Rumination Syndrome in Children and Adolescents: A Mini Review
    by Marc Martinez on September 7, 2021

    Introduction: Rumination syndrome involves recurrent regurgitation of food and is believed to be underdiagnosed with patients experiencing long delays in diagnosis. It can be associated with significant social consequences, high rates of school absenteeism, and medical complications such as weight loss. The primary aims of the current review are to assess the literature regarding prevalence, pathophysiology, and treatment outcomes with a focus on neurotypical children and adolescents. Results:...