The Biggest Loser will soon experience a different loss. Celebrity trainer Jillian Michaels announced via Twitter that it’s time for her to leave the NBC reality-TV show. Michaels will finish her contract, making Season 11 her last. The fitness guru said she plans to take a year off to “focus on becoming a mommy and doing more charity work.” She added that her short-lived NBC show Losing It With Jillian Michaels gave her some perspective. “Living with kids I saw first hand what I was missing,” she tweeted. Michaels also revealed that NBC has already chosen her successor, who will be phased into her new role during the upcoming 11th season, alongside Michaels.