Definition Adopted by FAO/WHO: Probiotics are: "Live microorganisms which when administered in adequate amounts confer a health benefit on the host".
Basically consumption of probiotic foods can increase the level of good bacteria already present in the digestive system. These naturally occurring good bacteria's primary function is to prevent the unfriendly ones from doing harm to the digestive system and the whole body. Live strains of these "good bacteria" are also found in FRUGURT products. Evidence indicates that some strains of Probiotics can help boost the immune system and promote a healthy digestive tract.