But more of a problem; the figures talk about obesity, but I can’t see any actual weights quoted.
I’ve noticed that. You have to accept that BMI is appropriate, and that a certain level of BMI correlates to a certain level of obesity for the data to be useful. None of this quibbling about “Ponderal indices”.
BMI’s chief advantage is that it’s noninvasive and suitable for large scale surveys. Imagine trying to recruit a random sample of the population in every country and weighing them underwater for fat content-- the cost would be prohibitive.
