In India, it's the rich who have problems with obesity. And the poor are darker-skinned because they work outside and often work without their tops on so you can see their ribs.
Most of the books that feature supernatural characters blending with the modern world and are usually set in big cities.
There are MAYBE 30 years worth of ideas out there... watch for the feature version of ER in about 25 years... Hollywood has become hopelessly chained to the bottom line.

