Frederickson caused a stir by losing 155 pounds during her time on the show. But she has since gained 20 pounds and says she is at her "perfect weight."
Ferderickson previously admitted that she was "a little too enthusiastic" with training, but she tells the magazine that she's glad it caused a firestorm. "It started a discussion about body image," she says. "That's huge."
Check out a photo of Frederickson from last month: