1. 1) Food and Agriculture Organization of the United Nations (FAO) and World Health Organization (WHO) : Health and nutritional properties of probiotics in food including powder milk with live lactic acid bacteria : FAO and WHO Joint and Expert Committee Report 2001. http://www.who.int/foodsafety/publications/fs_management/en/probiotics.pdf
2. 2) 光岡知足:“健康長寿のための食生活 — 腸内細菌と機能性食品”,岩波アクティブ新書,2002.
3. 3) 上野川修一:“免疫と腸内細菌”,平凡新書,2003.
4. 4) CIAA EU Nutrition and Health Claims Regulation. Article 13.1 list (as of July 2007). http://www.efosz.hu/letoltes/FCP28307E%20tudref1.pdf
5. Probiotics and Natural Defense Function of the Host