Kate Hudson says there's no secret to looking good -- you have to work for it! Credit: Jason Merritt/Getty Images

Werk! Kate Hudson works hard for her fit bod. The How to Lose a Guy in 10 Days actress admitted to Us Weekly at her mom Goldie Hawn's charity event Love In For Kids on Nov. 21 that she works her "ass off" to stay in shape and there's simply no other secret to looking good.

After dishing that she loves a "real serious double double burger, fries, and Coke," the Fabletics designer, 35, admitted that she has to work hard in the gym to maintain her perfect physique.

"You [have to] work your ass off, that’s the only way. [And] you have to eat right," Hudson told Us. "Everybody wants some sort of secret and there just isn’t, it’s just you have to work out."

The mom of two, who has been practicing Pilates for 15 years, said the key is to be consistent with your workouts. 

"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]," she said. "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!"

In an interview with Shape magazine, the bubbly blonde added she also turns to a cleanse every now and then. "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," she said, before adding that she still indulges. "Other than that, I eat everything. I just love food. I love bread. I love pasta."