(The Best Years in Life) Here is some very good news for parents. A recent issue of the journal Pediatrics contains a study analyzing and confirming the positive effects of probiotics in maintaining immunity and preventing disease, particularly in children. Youngsters in the study experienced a significant decrease in cold and influenza cases following sustained probiotic supplementation. The study also confirmed that probiotic supplementation decreases the length and severity of illness symptoms in those who are sick. Read More.