Don Gorske, a retired prison guard, ate his 25,000th Big Mac this week, 39 years to the day after eating his first … nine.

Gorske was honored after reaching the milestone during a ceremony at a McDonald’s in Fond du Lac, where he lives.

“I plan on eating Big Macs until I die,” he told media. “I have no intentions of changing. It’s still my favorite food. Nothing has changed in 39 years. I look forward to it every day.”

Guinness World Records recognised Gorske’s feat three years and 2000 Big Macs ago, and the 57-year-old says he has no desire to stop.

Before he ate No. 25,000, he showed dozens of onlookers many of the different styles of cartons he has collected over the years and other Big Mac-related stories.

Before biting into the burger, he said, “It’s been seven years since 20,000. Same thing goes this year folks. You can’t have the carton and it probably still takes 16 bites for me to finish a Big Mac.”

Gorske, who suffers from obsessive-compulsive disorder, kept count by virtue of the fact he has retained every receipt for every Big Mac he’s ever purchased.