The term "auto-brewery syndrome" has been frequently used to describe patients who show features of alcohol intoxication because of abnormal yeast proliferation after ingesting carbohydrate-rich meals. We present a case of a 3-y-old girl with short bowel syndrome (SBS) who demonstrated signs of alcohol intoxication on repeated occasions. A blood test indicated an ethanol concentration of 15 mmol/l, and cultures from gastric fluid and faeces showed the presence of Candida kefyr. An association was found between the introduction of a carbohydrate-rich fruit drink and the occurrence of symptoms. CONCLUSION: The possibility of endogenous ethanol fermentation should be considered in patients with SBS and the diagnosis of auto-brewery syndrome added to the differential diagnosis list for D-lactic acidosis. Management includes both antifungal treatment and special diet modification.