Chocolate Consumption, Cognitive Function, and Nobel Laureates

Various takes on this story. Do not self-medicate.

The New England Journal of Medicine: This is paywalled.
http://www.nejm.org/doi/full/10.1056/NEJMon1211064
Chocolate consumption could hypothetically improve cognitive function not only in individuals but in whole populations. Could there be a correlation between a country's level of chocolate consumption and its total number of Nobel laureates per capita?

Chocolate-loving countries produce more Nobel laureates

Chocolate consumption, cognitive function & nobel laureates

If Eating Chocolate Increases My Chances of Winning a Nobel Prize, Why Haven't I Won?