Vanessa Lachey attributes post-pregnancy body to Spanx, busy lifestyle

Vanessa Lachey, who welcomed son Camden John with Nick Lachey last, told HuffPost Live in an interview Wednesday that new moms shouldn't feel pressure to lose the weight so fast.

"I gained, I think, 65 pounds when I was pregnant," the 32-year-old mother and "Wipeout" host said. "And I will say to moms out there, 'Don't stress about losing it. It will happen when it happens.'"

Lachey credited her ability to lose weight to her healthy lifestyle.

"Cam's 9 months, so it's been a minute, and we're working, and we're traveling, and it's just about maintaining a happy, healthy lifestyle, not obsessing about it," she said.

"It's not about this 'get skinny quick' diet or these fads. Just enjoy time being a mom. You've just had this wonderful, magical moment, and you shouldn't be stressing about that kind of stuff."

But there's no shame in a little help either.

"Spanx are amazing," Lachey quipped. "Thank you to the inventor of that."