He’s also used rowing, heavy weights and kettle bells in order to get in shape.
However, he’s also admitted that he originally lost a stone and a half due to food poisoning after eating some bad seafood in Thailand in December last year.
Fans have been stunned by his transformation, with viewers sharing their thoughts on social media following the latest episode.
One viewer wrote: “Craig has done amazing with his weight loss during lockdown, looking fit.”
Another tweeted: “Blimey Craig is half the man he used to be I hardly recognised him he’s lost so much weight.”