- http://www.salud.gov.pr/Pages/default.aspx
- http://www.who.int/mediacentre/factsheets/fs311/es/index.html
- http://www.tuotromedico.com/temas/obesidad.htm
- http://www.obesidad.net/english2002/default.htm
- http://www.nlm.nih.gov/medlineplus/obesity.html
- http://www.obesity.org/
- http://www.emedicinehealth.com/obesity/article_em.htm
- http://www.cdc.gov/obesity/
- http://health.nytimes.com/health/guides/symptoms/obesity/overview.html
- http://www.medicinenet.com/obesity_weight_loss/article.htm
