Kate HudsonThe pic that got the rumours startedLast month, rumour had it that Kate Hudson was pregnant.

All eyes were on her stomach as she was spotted with a slight rounding of her belly.

At the time she vehemently denied she was pregnant, and now she has revealed the real reason behind her weight gain.

Talking to OK! magazine, the actress said it was all down to her quitting smoking.

"I didn't like the way the car smelt, or my hair and clothes. It takes you away from the family and the things you're doing.Kate Hudson Kate Hudson You don't realise it at the time. Then when you're done, you go: 'Wow I do so much more in a day - including eat.'

And that's where the problem lay as quitting meant "eating more".

Kate added: "Then there were rumours in the press saying that I was pregnant. Later somebody said: 'When did you quit smoking?' And I was like: 'Right about the time everybody thought I was pregnant'."

Keen on fitness and health, Kate also likes a bit of pole-dancing and salsa to keep her in shape: "If you do a full salsa session for an hour, you've got to lose an inch. You're pouring sweat. Salsa is really fun."

And all that hard work is showing, as we think she looks fab.