A study on about 4,000 children at NICED in Kolkata showed that regular consumption of Yakult for 12 weeks for reducing the risk of acute diarrhoea by 14% in children (1-5 years).
In athletes who consumed Yakult for 16 weeks the risk of common cold and cough was reduced by 50% showed a study at the Loughborough University in UK.
There was an increase in salivary IgA in the probiotic group.
IgA is a very important antibody which is found in saliva, tears and mucus. It is our first line of defence against viruses and other infections.
Healthy people with low *NK cell activity who consumed Lactobacillus casei strain Shirota for 3 weeks showed an increase in *NK cell activity.