"She told [The Biggest Loser: Families' cast] that, in a season all about family, hers is about to get bigger," Sweeney representative Carrie Simons told People.
Similar to last spring's The Biggest Loser: Couples, The Biggest Loser: Families will feature teams comprised of two adult family members, with Jillian Michaels and Bob Harper serving as the edition's trainers.
Sweeney and husband Dave Sanov already have a 3-year-old son named Benjamin. The couple married in 2000.
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