Probiotics are a single or mixed culture of live microbes, which when administered in adequate amounts improve the indigenous microflora of the host. Probiotic cultures are fortified in foods. They are mainly consumed as a part of dairy foods and beverages like fermented milk drinks and yogurt. Probiotics create an intestinal balance by boosting the immune system or killing the pathogens in the intestine and forming colonies in the intestinal microflora. The strict regulations for the health claims of probiotics is the key market entry barrier.