MINNEAPOLIS (AP) - Experts say the criticism being levied at the latest winner of NBC's "Biggest Loser" isn't helpful and that the message needs to center on healthy living.

Minnesota native Rachel Fredrickson lost nearly 60 percent of her body weight on the NBC show. The 5-foot-4 24-year-old dropped from 260 pounds to 105 before Tuesday night's finale.

A three-time state champion swimmer in Minnesota, Fredrickson says she turned to sweets after a failed romance.

Frederickson's newly thin frame lit up Twitter on Wednesday. Many tweeted that she looked anorexic and unhealthy, while others congratulated her for dropping 155 pounds.

Eating disorder expert Jillian Lampert says a more constructive message to send to young people would center on well-rounded health, in eating, exercising and sleeping habits.