Who knew, huh? Here's a quote from cbc.ca
There are more doughnut shops per capita in Canada than anywhere else on the planet. Canadians eat more doughnuts than any other country's citizens. Although the doughnut is often seen as an American icon, it has become Canada's unofficial national snack. The popularity of the deep fried treats has to do with Canada's love affair with coffee, reports CBC's Beth Harrington. Coffee and doughnuts go hand in hand. And since coffee is Canada's number one beverage, its partner in crime, the humble doughnut, ranks up there in popularity.