Jodie Kidd is struggling to stay slim now she's in her 30s.

The former supermodel - whose tiny size six figure caused controversy when she first appeared on the catwalk in the 90s - is now a healthy size 12-14 but admits she finds it tough to keep her curves in check.

The 31-year-old blonde, who is 6ft 2in, said: "I'm lucky that I'm super tall - I used to be able to eat whatever I wanted and it would just kind of drop into my legs!

"But then my mid-20s came and so did the bum. I'm a country girl, so I used to ride horses to stay active, but I'm in London a lot now so I joined a gym. I actually quite like it because I always end up watching TV on the big screens!"

As well as exercise, Jodie - who is training for the London marathon and runs 10 miles several times a week - has to watch what she eats.

She told Closer magazine: "I have a 31-inch waist - it used to be a 28 - so now I'm really starting to watch what I eat. I'm cutting down on carbs, which is tough."