The prevention of eating disorders in secondary schools is important since it is aimed at students with ages in which the individual is most vulnerable and the disorder can become chronic. After reviewing the evidence, outside and within our country, the recommendations assembled will be helpful to design efficient preventive programs for implementation in secondary education. The use of interactive content, approach to risk factors, prevention of obesity, application in early ages, interventions carried out by the center's own staff, inclusion of the gender perspective and evaluation of the programs in a controlled, rigorous and scientific way.