Mexico’s traditional diet of beans and corn has been replaced with pizza and hamburgers.

A new Coca-Cola-run shop opens roughly every eight hours in Mexico. But despite this full-scale corporate takeover of Mexico’s cities, towns and diet, most people believe the severe obesity and diabetes problems here are down to local culture and individual choices. They would be wrong.

A block and a half from where I live there’s an Oxxo, a corner store owned by Coca-Cola that stocks chips, biscuits, soft drinks, nachos, cigarettes, beer, bottled water and sweets. There are two more Oxxos two and four blocks to the west, and another one a few blocks to the south. With predictable stock, bill-paying facilities and open 24 hours, even the most health-conscious and anti-consumerist people go to an Oxxo a few days a week.