Anyway, the above countries show up due to a combination of common body types, genetics, diet, and, in several but not all of these places, malnutrition.
Thats why a lot of starving countries (somalia, south sudan, mali...) are not represented in this quiz. On the other hands, rather wealthy countries that have a culinary tradition f diversified and healthy food (in Asia for instance) dont have any obesity. But that is changing really fast due to the implementation of fast/sweet food from the West. In Cambodia the rate of obesity has doubled in 20 years, due to the processed foods.