He has credited cutting out carbs to slimming down, in part, discussing his methods with ITV’s Loose Women.
Mark said: “I am gradually dropping Xs off my size. I’ve gone from 5XL to 4XL and it looks like the next time I go shopping I’ll be able to squeeze into XL underpants.
“I’ve lost 10 stone, I was 29 stone when I was a full-time teacher in 2003 and I was in danger of high blood pressure.
“I’ve been around 26 stone up until lockdown, and then a few things happened quite nicely and came together and I started losing weight.”