Don Gorske, 54, who is physically fit, hit his 23,000th Big Mac milestone last month, the Fond du Lac (Wis.) Reporter said in a story published Monday.
Gorske, who works for the Waupun Correctional Institution, claims to have every receipt for each Big Mac dating to May 17, 1972, when he got his first car, the Reporter said.
Gorske, who says he is obsessed with numbers, started his book of Big Mac memories in early 2006 and published it May 2 of this year. The 205-page book is called "22,477 Big Macs." Gorske said he doesn't care if people think he's crazy.
"I promised myself I would eat a Big Mac every day no matter how bad things got," he said. "The best thing of the whole day was the Big Mac."