Probiotics, as defined by the United Nations and World Health Organization, can be defined as “live microorganisms that, when administered in adequate amounts, confer a health benefit on the host”. The field of probiotics is increasing tremendously and certain probiotics like the Lactobacillus rhamnosus  GG (LGG) and  Saccharomyces boulardii have been seen to have proven benefits in acute gastroenteritis and antibiotic-associated diarrhea (AAD).