Kristin Cavallari is a 'freak about eating healthy'

Former Laguna Beach and Hills star Kristin Cavallari is looking slim, trim, and fabulous only six months after she and fiance Jay Cutler welcomed son Cam. So what’s her secret? Eating healthy and only indulging in fast food twice a year!

"I'm like a freak about eating healthy," she told US Weekly . "I've always been a really healthy eater. I think when I got pregnant I took it up another notch, just because I was so aware of what I was putting in my body. I've just maintained that since I've had Cam. And honestly, I rarely drink alcohol, which helps too. It's just empty calories."

Even though Kristin has managed to maintain her rocking bod for six months that does not mean she deprives herself from indulgence.

She continued, "I have a huge sweet tooth but I'll get dark chocolate with caramel. Or there's an ice cream at Whole Foods called Coconut Bliss, which is made out of coconut milk, and so, to me, that's not really cheating."

However, the couple’s biggest indulgence is greasy, fast food burgers. “There's a place called Portillo's in Chicago which is fast food [and] has the best burgers. So we've had that I think twice this year. But that's a lot of fast food for me in that short amount of time," she said laughingly.

We recently reported Cavallari’s husband Cutler re-proposed to her via text-message. However, how is the other man in her life?

On her son, she gushed to US: “He's almost six months. He's getting his two bottom teeth and he just started eating food, which has been a ton of fun."

Along with motherhood, Cavallari has been quite the busy woman. She recently released a line of jewelry and shoes and has been busy promoting them in Los Angeles. Cavallari’s E! Special airs March 10, where discusses both her professional and personal life.