"My number one beauty tip has always been sunscreen," Sweeney explained about her interest in the competition. "Naturally I want to protect my kids and give them good habits. I grew up with the Coppertone brand and the image of Little Miss Coppertone is so iconic. It's what I imagine when I think of fun in the sun."
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Read on for more on what she's looking for in the contest winner, how she keeps her family healthy, and Biggest Loser romances:
Her judging criteria.
"For me, it's all about the spirit. You don't have to look like the original Coppertone girl. We want to see people from all walks of life and are just looking for that little girl that has that energy and outdoor enthusiasm."
How she keeps her kids healthy.
"A lesson that I learned from The Biggest Loser that has been really helpful is a simple math equation. I've been known to reduce it to Lightning McQueen needing fuel for his car. It's important to have the healthy fuel that helps you run fast. So I tell them the vegetables are what that is. I try to have my kids understand the reasoning behind things. It's the old Popeye mentality: your vegetables help you grow muscles. We make fitness a family thing too. We do outdoor activities, go on hikes, go to the beach. We keep our kids moving and they can see that we also lead healthy lives."
On why romance blossoms on The Biggest Loser.
"We have a bunch of great love stories! Normally in a romance you put your best foot forward but then over time you see who the other person really is. And then it either works out or not. But when they come to the campus, some of them are at their lowest points and they're baring their souls and weaknesses.