1. South Korea
Obese population: 2.6%
The first place of the 11 thinnest skinniest fittest countries in the world list is South Korea. The percentage of obese people is 2.6%. This is a very healthy nation and almost unrealistic percentage for modern world because there are a lot of tasty unhealthy cheap food. If you eat this kind of food you have to work out very much to stay in shape. Because there are only 2.6% of overweight people in South Korea we can conclude that they have a high degree of wealth to buy good food, strong discipline, strong will to be healthy, good food and overall good health.