Research to improve the possibilities of primary, secondary and tertiary prevention is desirable, because many young women in western societies develop eating disorders, which are difficult to treat. It usually takes a long time before people with an eating disorder improve or recover from it (Herzog et al. 1992b). Researchers have shown that the shorter the duration of the eating disorder, the better the prognosis for recovery (Morgan and Russell, 1975; Herzog et al. 1992a). Prevention, however, is not easy to realize. There are many problems to be solved. In this article, I will firstly present the most important problems of primary, secondary and tertiary prevention of anorexia and bulimia nervosa. In the second place, I will make some suggestions concerning prevention of eating disorders, and make a plea for an integrated model for primary, secondary and tertiary prevention.