There is a long history of probiotic and its usage for both health improvements and as preventive
measures towards illnesses. In the past century, there have been extensive researches and evidences
supporting the usage of probiotics to prevent sickness and/or enhance the functions of different body systems.
Several studies reveal that the presence of probiotics on the intestinal walls helps prevent illnesses caused
by pathogenic microorganisms as well as help enhance the immune system and help decrease the number of
harmful microorganisms. Probiotics are defined by the Food and Agriculture Organization of the United Nations
(FAO) and the World Health Organization (WHO) as “live micro-organisms which, when administered in adequate
amounts, confer a health benefit on the host”. This group of microorganisms is used worldwide in health
promotions and treatments of certain conditions. Various researches suggest that these “healthy” probiotics
have positive impacts on irregular gastrointestinal functions, such as in the case of diarrhea. The probiotics also
enhance the functions of the immune system and help alleviate allergy symptoms in children, adults
and elders.