Comments and Key points
This article recommends optimum Body Mass Index threshold values to define obesity:
It’s a good article from a perfectly conducted study. The population sample came from Lisbon, Portugal, which is the only factor that makes the results seem potentially not applicable to other nationalities. The keywords should have been obesity children child.
But, compared to the CDC’s definition of overweight at the 85th percentile line of BMI for age, the Lisbon thresholds seem more appropriate.
A closer reading of this article, shows they actually were thinking about the 85th percentile, but they seem to be unwilling to use the word "overweight". I guess that’s the only confusing thing about this study. Obviously, their results should be interpreted as an "overweight" threshold for adolescents, which corresponds to >=25% body fat for boys and >= 30% body fat for girls.
P.S. If someone can explain why a very popular google search phrase seems to be obesity children child, which isn’t good grammar, please feel free to email me and explain.
Other scientific BMI articles.