Kate Hudson works her ''ass off'' to stay slim.

The 'Bride Wars' actress confessed she has no secrets when it comes to maintaining her svelte figure and insists the only way to get into shape is to work out consistently.

She told US Weekly: ''You [have to] work your ass off, that's the only way. [And] you have to eat right.

''Everybody wants some sort of secret and there just isn't, it's just you have to work out.''

However, the blonde beauty - who has her own line of women's sportswear, Fabletics - did share her top tips for making the most out of work outs, claiming regular exercise is more beneficial to the body than longer, sporadic work outs.

She explained: ''I wouldn't say [I work out] a lot, just consistently. People think for some reason you have to work out for two and a half hours but, it can be little. It can be 20 minutes, it could be 40 minutes, but you have to [get it in].

''You can't do like two weeks and go like do two days and then take a week off and then do three days and then go, 'Why aren't I [seeing results?] I don't get it.' You know, you just got to do it - sad, like anything else in life!''

When it comes to her diet, the 35-year-old actress previously revealed that she doesn't cut out her favorite treats and simply rejuvenates her body with a bi-annual juice cleanse to rid her system of toxins.

She said: ''I've eaten in all sorts of different ways over the years. I like to do juice cleanses twice a year for five to seven days, or food elimination cleanses where I just eat super clean.

''Other than that, I eat everything. I just love food. I love bread. I love pasta.''