New Jersey Gov. Chris Christie, who has acknowledged to Barbara Walters he’s “more than a little” overweight and munched on a jelly doughnut on David Letterman’s talk show, is addressing his weight issues head-on as speculation intensifies that he’s positioning himself to run for president in 2016.

“If you talked to anybody who has struggled with their weight, what they would tell you is ‘every week, every month, every year, there’s a plan,’ ” Christie said Tuesday, a day after appearing with Letterman. “The idea that somehow I don’t care about this, of course I care about it, and I’m making the best effort I can.”

Christie, 50, acknowledged dieting has been a regular part of his life for 30 years. “Sometimes I’m successful, and other times I’m not,” he said.

Christie found himself addressing the issue again Tuesday when a reporter asked whether the people who elected him should worry about his health because of his weight.

Christie said he’s “remarkably healthy” and proved his fitness for the job by working 18-hour days after Superstorm Sandy.

Brown’s probation might be revoked

Prosecutors have asked a judge to revoke Chris Brown ’s probation, saying there is no credible evidence he completed his community service sentence for beating Rihanna, and citing several other incidents that they say point to anger management issues.

The motion was filed Tuesday by the Los Angeles County district attorney’s office.

The prosecution’s motion notes several incidents in which Brown has lost his temper, including throwing a chair through a window after a “Good Morning America” interview in which he was asked about his beating of Rihanna on the eve of the 2009 Grammy Awards. The report also cites Brown’s Jan. 27 fight with R&B singer Frank Ocean. Brown is due in court today for a probation hearing.

The birthday bunch

Actress Zsa Zsa Gabor is 96. Actor Patrick Macnee is 91. Actor Rip Torn is 82. Actress Mamie Van Doren is 82. Actor Mike Farrell is 74. Former NBC News anchorman Tom Brokaw is 73. Singer Fabian is 70. Actor Michael Tucker is 69. Singer Natalie Cole is 63. Actress Kathy Najimy is 56. Rock singer Axl Rose is 51. Singer Rick Astley is 47.