Probiotics are live microorganisms, which when administered in adequate amounts confer a health benefit on the host (FAO 2001)1

1Food and Agriculture Organization of the United Nations (FAO). 2001. Health and Nutritional Properties of Probiotics in Food including Powder Milk with Live Lactic Acid Bacteria, http://www.who.int/foodsafety/publications/fs_management/en/probiotics.pdf

Probiotic Definition