'Loser' trainer accused of 'doping'

Biggest Loser trainer Jillian Michaels has revealed that she was accused of giving drugs to contestants on the show's seventh season.

The reality star told TV Guide that participant Filipe Fa raised the accusations, leading to a week-long investigation by the show's producers. The inquiry proved the reports to be false.

"I was so furious, so disgusted. I felt so betrayed," Michaels said.

Fa has denied that he caused any suspicion.

"There was never any accusation about her giving drugs," he said.