Hilary Duff on Which Diet "Sounded Too Disgusting" to Try

Three years after giving birth to her adorable son, Luca, Hilary Duff is showing off her impressive postbaby body on the May cover of Shape Magazine. Discussing the pressure to "always have it together," her distaste for fad diets, and aggression during workouts, the actress shares it all in her interview with the mag. Read on to find out Duff's fitness secrets, and then relive her incredible transformation.

On Hollywood pressures: "There's so much pressure to always have it together, and I'm not falling for it. You see supermodels who have babies, and the next week they look as if they were never pregnant. That was not the case with me. Some days I feel great, others I feel pretty normal, and that's acceptable."

On her workout philosophy: "I don't do auto-gym. I go three times a week and mix it up every time. I work out with weighted balls, battle ropes, and big rubber bands. I do this thing with a sledgehammer where I swing it and hit a rubber block, and it gets out all of my aggressions. Everyone is like, 'Uh-oh, Hilary's got the hammer — get out of the way!'"

On everyday exercise: "And I rely on real-life exercise. Carrying my son, for one. He weighs 35 pounds. The other day we went to Disneyland and he fell asleep in my arms, and I had to carry him back to my car, which was a 30-minute walk. I was dying."

On dieting: "I rely on grown-woman food. I'd rather have someone pull my fingernails off than hunker down and go on an actual diet. It's so hard for me! My sister Haylie and I once considered doing a baby-food diet, but it just sounded too disgusting."

On healthy snacking: "I do cool things with snacks. My favorite is a Wasa cracker topped with avocado, radish, chia seeds, a little olive oil, some sea salt, lemon, and dill. That keeps my palate excited."

On her secret to happiness: "The key to a happy life is cheese. It's a real problem. I can't say no to it! There's a cheese shop in Beverly Hills, and my car is like a magnet to it. Luca is crazy about it, too. Love the cheese!"

On cutting back: "I love my wine, but when I'm really trying to lose weight, that's got to go. Alcohol is a trigger to make bad choices, just like when I get too hungry."