As obvious as a problem obesity is for America is really is a touchy subject and incredibly tough to treat. Also defining who is obese is more complicated than just using a single measure ala BMI.
However, the BMI is still one of the best measures for obesity and a great screening tool for health care workers to identify who is at risk and who isn't. I would be careful to state that the "BMI is completely worthless." While there is bunch of literature out there, here is a recent article from the Mayo Clinic's academic journal published in Oct 2006.
I apologize for the length of this article, I don't think the link would have been publicly available and I am not versed enough on pubmed
Last edited by jutang; 07-19-2007 at 10:27 PM..