Jillian Michaels Slams Rachel Frederickson Weight Loss By Author Kay Rhodes Published: Feb 28, 2014 at 5:26 PM • Updated: May 10, 2022 at 6:14 AM • Category Jillian Michaels Reading Time: < 1 minute Jillian Michaels thinks Rachel Frederickson lost too much weight on The Biggest Loser. She goes into detail about this season’s winner here.