A fundamental tenant of the EFI guidelines is no dairy. Having said that in fairness of full disclosure it should be mentioned that the IBS research shows that for some people dairy can be a problem while for others it isn't. In some instances yogurt with particular probiotics has been shown to have beneficial effects for IBS. Like so many things concerning IBS you may have to figure out what works for you.
-------------------- STABLE: ♂, IBS-D 50+ years - Science of IBS