Ben Affleckis feeling good, and it’s all thanks toJennifer LopezandAlex Rodriguez’s10-day challenge!

The actor, 46, decided to tackle the no-sugar, no-carb diet that his former fiancée Lopez and her current boyfriend, Rodriguez,started back in January. Affleck was inspired after the couple talked about it on theTodayshow andchallenged others to join in.

Affleck toldHoda Kotb— who also was one of the few to make it through the program — all about it after she pointed out thathe was looking healthyduringhis appearance onTodayon Monday morning.

“When I walked in and saw ya, I said, this guy is looking so good. You look like things are going right in your life,” she said.

“I saw Carson Daly bombed out after a day and a half,” Affleck said with a laugh.

“He totally did! He didn’t even make it an hour,” Kotb said.

“I know I can pass the doughnut tray for longer than a day,” Affleck yelled over to Daly, who amiably said, “Not me! Good for you Ben!”

Ben Affleck.Roy Rochlin/WireImage

“Triple Frontier” World Premiere

But Affleck then conceded to Daly and Kotb that the 10-day challenge was as difficult as they said.

“It’s not easy! I will admit, Carson, that it was a little bit tough, but I feel better,” he said. “It’s awful for the first couple of days because I am definitely somebody who likes bread and sugar.”

Charlie Hunnam, who was there with Affleck topromote their new movie,Triple Frontier, asked about the diet restrictions.

“So it’s no carbs, no sugar?” Hunnam said.

“No bread, no sugar, no dairy. It was supposed to be no caffeine, I cheated on the caffeine a bit, I have to say,” Affleck said. “But you know, it’s one of those things where it’s terrible and then you get through it and you’re like, ‘Oh, I feel pretty good!’ “

Understandably though, Affleck went straight for the carbs once the challenge was up.

“Of course at the end of the ten days I had like, three bagels,” he said, laughing.

RELATED VIDEO:Jennifer Lopezand Alex Rodriguez End Their 10-Day Challenge with Epic Feast: ‘Worth the Wait’

Lopez and Rodriguez invented the challenge in January, at the advice of her trainer, as she prepares to play a stripper in a new movie. And much like Affleck,Lopez said she struggled with the withdrawal symptomsat first.

“Not only do you get a headache, but you feel like you’re in an alternate reality or universe,” she said. “Like you don’t feel like yourself. You realize that you’re addicted to sugar. And I’m thinking about it all the time. I’m like, ‘When can I have sugar again? I’m going to have cookies and then I’m going to have bread and then I’m going to have bread with butter.’ “

ButLopez’s cravings died down eventually.

Along with revamping his diet, Affleck said onTodaythathe’s taken major steps in his journey towards sobriety.

“Being an alcoholic, it’s part of my life, it’s something that I deal with,” he told Kotb. “It doesn’t have to subsume my whole identity and be everything but it is something that you have to work at.”

Affleck completed a 40-day rehab stayin October.

“I had a problem and I really want to address it and I take some pride in that,” he added. “It’s about yourself, your life, your family…we encounter these kinds of hurdlesand we have to deal with them.”

source: people.com