A man lost over half a stone despite eating the equivalent of 10 slices of pizza every day for a month - and is now more ripped than when he started.
Personal trainer Ryan Mercer, 34, ate pizza for breakfast, lunch and dinner and managed to lose a whopping three and a half kilograms during the 30-day challenge.
He took on the challenge to show how calorie deficit diets allow people to lose weight without restricting their favourite foods.