Italian researchers report on a case of Blastocystis infection, mis-diagnosed as gluten intolerance, which subsequently resolved, possibly due to treatment with Saccharomyces. The researchers report that, ” 41-year-old Italian man came to the clinician’s observation reporting cramps, bloating and watery diarrhoea a few days after drinking water indicated as unpotable from a fountain in a farm area. The medical suspicion was directed at both gluten intolerance and enteric infection, eventually of waterborne origin. Gluten intolerance was investigated by intestinal biopsy and excluded, while stool analyses ruled out infective bacteriological or viral agents and parasites. Subsequently, a persistent eosinophilia was revealed and a parasitological analysis was again suggested, planning for a more sensitive molecular method.” The study was published in New Microbiologica.