I don't buy it. Some areas of the US have obesity rates similar to western Europe (and let's be honest, when your obesity rate is 1 in 4, you don't get to brag

I don't buy it. Some areas of the US have obesity rates similar to western Europe (and let's be honest, when your obesity rate is 1 in 4, you don't get to brag about it being low). I suspect there are other indicators that an experienced person could use to identify nationalities without requiring a verbal conversation first.