Are there overweight people in this country? Of course there are.
However, they changed the way the BMI was calculated, moved the numbers around, and PRESTO!!, more fat people were created overnight!!
They've done the same with diabetes testing. Way back when, a 110 fasting blood glucose was considered borderline or pre-diabetic. Since I was a little over that, I cleaned up my diet, got more exercise and lost quite a bit of weight. My doctor was still telling me that I was pre-diabetic. As my level was dropping, the cutoff was dropping even faster. The cutoff had been dropped to 105 and, last I heard, had been further reduced to 100. When I finally got mine down to 99, I was finally "normal".