The winner of NBC’s “Biggest Loser” is now being criticized for losing too much weight.

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Rachel Frederickson shed 155 pounds and won the competition. The 24-year-old shocked the judges during the season finale’s big reveal. She went from 260 pounds to 105 and shed 60 percent of her body weight.

At a height of 5’4”, nutrition experts say she weighs less than what’s recommended for her height.

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Critics took to Twitter to slam Frederickson for looking too skinny and being unhealthy.

NBC responded in a statement: “We support Rachel and all of the 'Biggest Loser' contestants who have shared their journeys over the past 15 seasons. We remain committed to helping contestants achieve healthy weight loss and live healthier lifestyles, and to inspiring viewers to do the same.”

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