YouTubers are challenging themselves to eat 10,000 calories in a single day in a bid to impress their fans - and the task is proving harder than it might seem.

As the name suggests, the challenge involves scoffing at least 10,000 calories in the space of a day, about 8,000 calories more than the recommended daily amount of 2,000 for women and 2,500 for men.

Searching the phrase on YouTube rakes up thousands of videos, and while each YouTuber has their own take on the challenge, most use it as a chance to gorge as much junk food as possible.

YouTuber Furious Pete, who has more than three million followers, ate 10,000 calories in one go by making giant pieces of French toast. In one sitting, he ate three loaves of brioche bread cooked in egg, full-fat milk and butter, topped with chocolate and peanut butter. And he looks understandably defeated by the end of the video.

Others take a slower approach. Rob Lipsett, who has more than 91,000 subscribers, told his fans that the 10,000 calorie challenge is a “YouTube rite of passage.”

In one day, he ate French toast, American pancakes, four cookies, a burger, fries, three pizzas, cheese, and a tub of ice cream. Undefeated by the mountain of food, he pledged to eat 20,000 calories if 20,000 users liked the video.

The world's biggest food fights Show all 11 1 /11 The world's biggest food fights The world's biggest food fights La Tomatina, Buñol, Spain Revellers throw tomato pulp at each other during the annual "tomatina" festivities in the village of Bunol, near Valencia on August 26, 2015. Some 22,000 revellers hurled 150 tonnes of squashed tomatoes at each other drenching the streets in red in a gigantic Spanish food fight marking the 70th annual "Tomatina" battle. AFP PHOTO / BIEL ALINO (Photo credit should read BIEL ALINO/AFP/Getty Images) Biel Alino/AFP/Getty Images The world's biggest food fights La Tomatina, Buñol, Spain A reveller is pelted with tomato pulp during the annual "tomatina" festivities in the village of Bunol, near Valencia on August 31, 2016. Today at the annual Tomatina fiesta 160 tonnes of ripe tomatoes were offloaded from trucks into a crowd of 22,000 half-naked revellers who packed the streets of Bunol for an hour-long battle. / AFP / BIEL ALINO (Photo credit should read BIEL ALINO/AFP/Getty Images) Biel Alino/AFP/Getty Images The world's biggest food fights La Tomatina, Buñol, Spain Revellers covered in tomato pulp participate in the annual "tomatina" festivities in the village of Bunol, near Valencia on August 31, 2016. Today at the annual Tomatina fiesta 160 tonnes of ripe tomatoes were offloaded from trucks into a crowd of 22,000 half-naked revellers who packed the streets of Bunol for an hour-long battle. / AFP / BIEL ALINO (Photo credit should read BIEL ALINO/AFP/Getty Images) Biel Alino/AFP/Getty Images The world's biggest food fights World Custard Pie Championship, Kent Funk Dooby/Flickr The world's biggest food fights World Custard Pie Championship, Kent Funk Dooby/Flickr The world's biggest food fights La Merengada, Vilanova i la Geltrú, Spain Ajuntament de Vilanova i la Geltrú The world's biggest food fights La Merengada, Vilanova i la Geltrú, Spain Ajuntament de Vilanova i la Geltrú The world's biggest food fights Battle of the Oranges, Ivrea, Italy Giuseppe Cacace/AFP/Getty Images The world's biggest food fights Battle of the Oranges, Ivrea, Italy Giuseppe Cacace/AFP/Getty Images The world's biggest food fights Clean Monday, Galaxidi, Greece Louisa Gouliamaki/AFP/Getty Images The world's biggest food fights Clean Monday, Galaxidi, Greece Louisa Gouliamaki/AFP/Getty Images

“I'm feeling fine. I could definitey eat more Ben and Jerry's,” he told fans at the end of the challenge.

As a person needs to eat around 3,500 extra calories to put on a pound of fat, the challenge will likely cause around 3lbs of weight gain and would take around 10 hours of intense training to burn off.

For professional athletes, high-calorie diets are part of the intense lifestyle. Britain’s Strongest Man Eddie Hall, who weighs 28.3 stone, recently revealed that he eats 10,000 a day.