24ENDOMETRIOSIS PREVENTION AND/OR IMPROVING AGENT, AND FOOD OR DRINK COMPOSITION CONTAINING SAMEABSTRACT5The present invention provides agents for preventing and/or improving endometriosis, which contain lactic acid bacteria of the genus Lactobacillus, in particular, Lactobacillus gasseristrain OLL2809. The present invention also provides food and beverage compositions for preventing and/or improving endometriosis, which contain the lactic acid bacteria, and methods10 for preventing and/or improving endometriosis which comprise administering the lactic acid bacteria.(Fig. I)