[arjun-menon]

> Culturally it seems that fitness in general is encouraged, combined with a very different attitude toward being overweight (I had several locals comment that I was a bit fat [my BMI is ~26])

This, perhaps, is the key to their longevity.

The French have a similar attitude as well (based on my time in France).

[Avshalom]

I dunno https://www.wolframalpha.com/input/?i=obese+adults+vs+life+e... doesn't look to have much of a trend line.

[Barrin92]

plotting significantly poorer and underdeveloped countries against rich countries is rather pointless.