Overeaters Anonymous (OA) is a twelve-step program for people ientifying themselves as "powerless over food" including, but not limited to, compulsive overeaters, those with binge eating disorder, bulimics and anorexics. Nobody with a desire to stop eating compulsively can ever be barred from an OA group. Anyone with a problematic relationship with food is welcomed. OA was founded by Rozanne S. and two other women in January, 1960. OA's headquarters (World Service Office) are located in Rio Rancho, New Mexico. OA estimates its membership at 70,000 and is active in over 70 countries. OA has developed its own literature but also uses the Alcoholics Anonymous (AA) books Alcoholics Anonymous and Twelve Steps and Twelve Traditions.