The 35-year-old actress flaunts her rock-hard abs on the cover of the March issue of Shape, where she poses in a tiny sports bra and skintight leggings.
While the blonde beauty clearly works hard to maintain her slim silhouette, she admits that she hates the idea of dieting.
"It puts so much pressure on people to lose weight quickly," she tells the mag. "Getting healthy is not a two-week process, it's a change of lifestyle."
For Hudson, her lifestyle change came after an encounter she had in a Parisian restaurant.
"I was at my favorite French restaurant in Paris … eating everything I love … steak, fries, lots of wine. Then the dessert came, and I was having strawberries and cream pastries plus the wine," she reveals. "A svelte, sophisticated woman approached [my] table. She pointed to my glass of wine. 'This is your piece of cake. That's how you should be thinking.' And I always try to remember that: Everything in moderation!"
Not only did the Fabletics founder change her dieting mindset, but her priorities also shifted when she had sons Ryder, 11, and Bingham, 3.
"I felt a shift and really don't have the desire to thrill-seek anymore," she says of motherhood. "The other day my brother [Oliver Hudson] was making fun of me and called me a Gucci skier. He said, 'You're wearing all the right clothes and look good skiing, but when you get down the hill, you're done.' And I thought, 'You know what? It was fun while it lasted, but I don't have to prove myself to you anymore.' I'm happy doing what I want to do now."
For more with Kate Hudson, pick up the March issue of Shape, on newsstands Feb. 19.