Short and sweet. Two groups of children in daycare environments. One received a fermented milk product twice a day for 3 months. The other received a control drink. 300 children in the fermented milk group. A target probiotic of the Lactobacillus genus was observed for its possible actions in preventing respiratory and gastro-intestinal common infectious diseases.
Of the two groups, controls and fermented milk drinkers, the only significant difference was the fermented dairy drinkers appeared to be resistant to the common cold - rhinopharyngitis.
The authors concluded “Although no other significant differences were shown between the fermented milk and control product groups in this study, lower incidence of rhinopharyngitis may indicate a beneficial effect of this fermented milk product.”
So probiotics and fermented dairy products may be living up to the task of preventing the common cold in children in a daycare setting so all the parents out there.