Glazed doughnuts are the most popular type in the United States, accounting for over 25% of all doughnut sales.

The doughnut originated in Ancient Greece, where it was known as a "teganites" and was made from a mixture of flour, honey, and nuts.

There is no difference between a doughnut and a donut. Both terms refer to the same type of fried pastry.

The largest doughnut ever made was 25 feet in diameter and weighed over 2,000 pounds. It was made by Krispy Kreme in 2013.

The most expensive doughnut ever sold was a $5,000 doughnut made by the Ritz-Carlton Hotel in Dubai. It was made with Dom Pérignon champagne, edible gold leaf, and a diamond.

Glaze is the most popular doughnut topping, followed by chocolate frosting, sprinkles, and powdered sugar.

Jelly is the most popular doughnut filling, followed by cream, chocolate, and fruit.

Round is the most popular doughnut shape, followed by square, triangular, and oval.

Chocolate is the most popular doughnut flavor, followed by vanilla, strawberry, and Boston cream.

Dunkin' Donuts is the most popular doughnut chain in the United States, with over 9,000 locations.

National Doughnut Day is celebrated on the first Friday of June in the United States.

The Doughnut Song is a popular children's song about a doughnut that comes to life.

The Doughnut is a 2003 American comedy film about a group of friends who start a doughnut shop.

The Doughnut Book is a 2014 cookbook by Sarah Fennel that features over 50 recipes for doughnuts.

Doughnuts.com is the most popular doughnut website, with over 1 million visitors per month.