“Auto-brewery syndrome (ABS), also known as gut fermentation syndrome, describes the condition in which the concentration of ethanol increases to a noticeable level in the setting of little or no alcohol consumption [2]. It is a rare condition that is more prevalent in patients with underlying gut problems [2,3]. The suggested mechanism of this unique phenomenon revolves around the fermentation of carbohydrates in the human body by microorganisms [3].

ABS stems from the widespread proliferation of gut microorganisms, which, in turn, leads to endogenous production of ethanol. This phenomenon is pre

ceded mostly by the intake of carbohydrate-rich meals or antibiotic use, which can disturb the gut ecosystem [2,10]. It is also frequently associated with underlying pathology. This syndrome is also found to be in patients suffering from other disorders such as Crohn’s disease, short bowel syndrome, and chronic intestinal pseudo-obstruction [12–15].

The causative organisms implicated in ABS include fungi and bacteria, with the most common yeasts being Saccharomyces and Candida species.”

National Library of Medicine NIH  (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7667719/)