Knowledge: Compared to all the countries in the world, Qatar is ranked number one on the list of the most water-stressed countries. Whereas, the most obese country by percentage of obese adults is Nauru, with 61% of adults falling in the obese category.

Conversation:
Is obesity as big of a problem in america as some people are making it out to be?
This is what I know: Two thirds of American men are overweight or obese, and more than that are so for women.
Oh wow, really? Would you happen to know an overall percentage of obesity in America?
I'm not sure of the exact number, but America has among the highest percentage of obese in the world.
That's not good! Is there anything the average American can do to fight obesity?
Absolutely! Obesity is usually preventable in most cases through a combination of personal choices and social changes.
Which country is ranked number one for this problem?

Response: The most obese country by percentage of obese adults is Nauru, with 61% of adults falling in the obese category.