An interesting thing about this study is that individuals with allergy or hypersensitivity to milk proteins were excluded from the study. The control group was given a milk with lactose and the study group yogurt with probiotic. One might expect the control group to show a statistical worsening of symptoms from baseline if there was a milk effect. They didn't. Go figure
As you said - hopefully some day they will do a robust study that rigorously controls for dairy. It is badly needed
-------------------- STABLE: ♂, IBS-D 50+ years - Science of IBS