Published: Feb 07, 2014 8:05 AM EST
Updated: Feb 07, 2014 8:16 AM EST

A contestant on a popular weight-loss show stunned everyone when she stepped on the scale and revealed her dramatic weight-loss transformation.

Rachel Frederickson, 24, went from 260lbs to 105lbs. Now, people are expressing concerns about her health.

WINK News Fitness Expert Mike Drumm joined the morning show to weigh-in on the controversy and the real reality behind extreme weight loss reality shows.