1 Know what you're eating
How many calories in a single roast potato? Around 70 to 80 is a safe bet. A mince pie? More like 250. Bear that in mind before you go back for seconds.
2 Take a walk
A pre- and post-dinner stroll will not only help you digest that mammoth meal, it will help prevent your metabolism from slowing to a snail’s pace over your festive, sofa-surfing period.
3 Make smart swaps
In the face of endless canapés, choose the ones that won’t blow your calorie budget in a single bite. Toast with smoked salmon, for example, is preferable to that creamy chicken vol-au-vent.
4 Do your shopping on foot
No time to kerfuffle around at the gym? A few hours of stop-start fast walking can help fill in the gaps – ditch the car then do your Christmas shopping in Doha’s sprawling malls. Walk there if you can.
5 Load up on veggies
Pile your plate high on Christmas Day – just make sure that at least 50 percent of it is colourful veg (and potatoes don’t count), alongside a reasonable serving of lean turkey breast.