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Of course all developed nations have their share of fat people, but 30% of all adults in the United States are obese and another 30% are overweight, while only 10% of Germans have a BMI over 30 with an increase up to 20 as they get older.
Sources
http://www.win.niddk.nih.gov/statistics/
Mikrozensus 2005 - Fragen zur Gesundheit, Statistisches Bundesamt, Zweigstelle Bonn