Even Santa Claus is worried about packing on the pounds this Christmas.

Saint Nicholas, like the rest of us presumably, had been training hard with The Ministry of Fun Santa's School in UK in preparation for his grueling international redeye this morning and all the milk and cookies, of course.

Take a look at the photos from @PAImages on Twitter below:

The workouts were held at the David Lloyd Club in Newbury, England, according to a release. The lessons included weightlifting to carry loads of presents, spin and aqua sessions for stamina and sleigh agility as well as yoga to fit down into chimneys.

"The Ministry of Fun Santa School is the UK's only genuine training school for professional Father Christmas performers," its website says.