THE average person consumes an enormous 7,000 calories from feasting and boozing on Christmas Day.

While most of us gain around half a stone, thanks to over-indulging at Christmas parties and on the day itself.

4 Christmas Dinner is one of the most calorific culprits Credit: Getty Images

The festive figure takes into account the roast dinner, bottles of bubbly, cheese selections, and chocolate variety packs that we will all be tucking into - as well as any cold cuts consumed in the evening.

But polls have shown we're completely unaware of how the calories are adding up, with a third of Brits (29%) thinking they eat fewer than 3,000 in total.

If you ate 7,000 cals every day of the year, you'd put on more than 26 stone - which is something to consider as you tuck in this December.

4 Each glass of fizz contains 113 cals Credit: Getty Images

4 That extra cheese and chocolate also adds up on the calorie front Credit: Getty Images

Which are the main culprits?

Quit fighting over the last roast potato - those bad boys weigh in at 200 cals each.

While turkey contains more than 100 cals per slice, stuffing balls 123 cals and pigs in blanket 97 cals.

A portion of Christmas pudding will set you back 339 cals, and each minced pie 230 cals.

While a glass of champagne will set you back 113 cals, mulled wine 119 cals, and Baileys measures in at 180 cals.

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How can you stop yourself piling on the pounds?

If your family are fans of post-lunch walks, a 9 stone person could burn 80-90 cals in half an hour or 160-180 cals in one hour.

Although you'd need to do 21 and a half hours of walking, 13 hours of an aerobics class, or seven and a half hours on the treadmill to burn all that off.

4 Head out for a one-hour festive walk to burn 160 cals or more Credit: Alamy

Eating disorder specialist Harriet Frew told Mail Online: "I think that if people are conscious about what they eat, they can get through the holidays without doing too much damage to their waistline.

"I think it's really positive to see a lot of people are already doing exercise, or certainly plan to in the New Year and hope to cut back on unhealthy food and alcohol.

"My message would be to try to eat clean and exercise when you can each day all year round, then you can enjoy Christmas without piling on the pounds."

The experts also advise drinking lots of water, and balancing the calorific foods with lots of yummy vegetables.

Christmas party nibbles can be a big cause of festive weight gain.

Plate them up and sit down to eat, instead of picking while you natter away, so you can keep track of how much you're consuming.