Howie Mandel is backtracking after a controversial joke he made on "America's Got Talent."

It all began when Mandel started praising "AGT" fan-favorite Stevie Starr, a.k.a. the "professional reguritator," for his ability to swallow random objects whole and bring them back up in one piece.

WATCH: Nick Cannon Kisses "AGT" Audience Member and It's Excruciating to Watch

"You, sir, make bulimia entertaining," Mandel told Starr. Even before making the quip, the 59-year-old "AGT" judge knew it was untoward, admitting that the joke "would probably come out wrong."

Beating social media to the bunch, Mandel, who suffers from OCD, said he was sorry a few segments later on in the show. "I just wanna take a second just to apologize. I made a comment earlier, it's live television, I wasn't thinking," he said. "I made light of bulimia, which is a very serious eating disorder and mental health issue. I deal with mental health all the time, and I did something stupid. I should never make light of it. I apologize to anybody that was offended. I'm not perfect, I make mistakes.

WATCH: Howie Mandel Debuts "Magic Mike" Moves on "Ellen"

Not letting it go, Mandel also took to Twitter to make a similar apology. "I am NOT perfect. I make mistakes," he tweeted. "I sincerely apologize to everyone who was offended."