Brewer's Yeast implicated in Gut Fermentation Syndrome

This research article chronicles the bizarre case of a man who appeared to suddenly become intoxicated without consuming any alcohol. The man frequently reported feelings of intoxication at inappropriate times and in response his wife bought a breathalyzer to document the occurrences. While doctors initially disregarded his condition as a case of closet drinking, experimentation proved that his gut actually was fermenting carbohydrates into alcohol, and to very high levels. Stool cultures showed that the man had an unusual growth of Saccharomyces cerevisiae in his gut -- Brewer's Yeast. Because of its use in biofuels, the Saccharomyces cerevisiae genome has been published. The man underwent successful treatment to rid his gut of Saccharomyces cerevisiae, which proved to be the causative agent for his sudden intoxication. This occurrence has been documented before but has never been formally proved in a clinical setting.

Original article here.