A Pennsylvania man going through treatment for colon cancer won a restaurant's raffle for a year's worth of free pizza and then donated his prize to a food bank.

Thirty-six-year-old Josh Katrick, of Northampton, had just completed his eighth round of chemotherapy when he learned he was the winner of a contest sponsored by his favourite neighbourhood restaurant.

After hearing of Mr Katrick's plans to donate the pizza to the Northampton Food Bank, the owners of Mario's Pizza decided to double down and offer the prize to both him and the food bank.

Mr Katrick says he's been getting so much from family, friends and strangers during the past few months that he wanted to give back to those who could use the pizza more.