"Steak and doughnuts" were among her staples before she cleaned up her eating habits and went vegan, she tells the new InStyle Home.
"Now I'm a total health nut," says Silverstone, 30. "I don't get sick very often and when I do it's for a short period."
She attributes her health to her diet and active lifestyle. "It's empowering to know that you're responsible for how you feel each day because of the way you treat your body."
One of her favorite workouts? Jumping on the trampoline in the backyard of the Los Angeles home she shares with her husband, musician Christopher Jarecki, 36. "It's great exercise and really makes you giggle," she says.
Courtesy of Instyle Home
"I love living this way," she says. "It's so satisfying and inspiring."