"I've had patients in my practice eat things like paper and clay for the same reason -- they're trying to distract themselves from hunger and prevent weight gain," she said.
"It's certainly a misguided practice, and I find it alarming for young girls to be doing this who don't have the information to understand what they are doing to their bodies."
Koskie said she hasn't seen much talk about the diet on her site's message boards or social media accounts yet. But now that there's been a buzz about the practice elsewhere on the Internet, she expects that to change. As the holidays get closer, she said, dieters grow more desperate to shed unwanted pounds, and they're more likely to try riskier behaviors to get there.