Probiotics are nonpathogenic microorganisms that, when ingested, exert a positive influence
on the health or physiology of the host. They can influence intestinal physiology either
directly or indirectly through modulation of the endogenous ecosystem or immune system.
The results that have been shown with a sufficient level of proof to enable probiotics to be
used as treatments for gastrointestinal disturbances are 1) the good tolerance of yogurt
compared with milk in subjects with primary or secondary lactose maldigestion, 2) the use of …