Matthew Mitnitsky, owner of Nonni's Italian Eatery in Concord, said Sunday that a 222.5-pound meatball was authenticated as the world's largest after being weighed by state weights and measures officials.

A Guinness Book of World Records official confirmed the big meatball as a record breaker and presented Mitnitsky with a plaque.

The old record of 198.6 pounds was set just over a month ago after Los Angeles-based talk show host Jimmy Kimmel vowed to beat a record set in Mexico. That record -- 109 pounds -- was set in August.

Mitnitsky said he got involved "to bring the meatball back to the East Coast because that's where it originated."