High knowledge about obesity and its health risks, with the exception of cancer, among Mexican individuals.

Mexico has the second biggest prevalence in the world of obese adults (30%). We conducted a survey to determine knowledge concerning obesity co-morbidities. Three groups were surveyed with a questionnaire divided into three sections: demographic characteristics; knowledge and awareness in relation to obesity being a disease; causes of obesity and the health risks it represents; weight auto-perception and the subject's personal experiences regarding weight. In all groups we found high knowledge regarding that obesity is a disease and the causes of its development, as well as that it greatly increases the risk of presenting type 2 diabetes, high blood pressure and knee osteoarthritis. However, in all groups, there was a gap in knowledge regarding the risk obesity poses for the development of breast and colon cancer. Aggressive health promotion campaigns concerning obesity, which have been implemented recently in Mexico, must emphasize cancer as a potential outcome for obese patients.