Peter Andre is planning to go on ''the caveman diet'' to lose the weight he gained over the festive period.

Peter Andre is going on "the caveman diet".

The 'Behind Closed Doors' hitmaker overindulged during the festive season and so is planning on beginning a strict eating regime when he gets back from a skiing holiday.

He said: "I've really over-indulged over Christmas, but everyone does that, don't they? I've probably put on a couple of kilos, so I'm going to start the caveman diet as soon as I get back to the UK. It basically involves eating just steak, nuts and vegetables for a couple of weeks!"

We're staying in a beautiful chalet and we've all been mucking in and cooking for each other. I've also managed to do a red run, which I'm so chuffed about.

Peter - who has recently been on a sunshine break to Dubai with children Junior, six, and four-year-old Princess - has pledged to be more spontaneous this year and is enjoying his last-minute trip to Switzerland.

He added in his latest column for new! magazine: "I'm writing from the Swiss Alps this week as I've come here for a few days with my brothers Mike and Chris and my friend Nick. It's absolutely stunning and we're having a ball. After my holiday in the sun with the kids, I fancied a few days skiing, so I just got on the phone and booked something last minute. I've decided 2012 is all about spontaneity.

"We're staying in a beautiful chalet and we've all been mucking in and cooking for each other. I've also managed to do a red run, which I'm so chuffed about.