As someone who knows Kim and has eaten many meals with her, this girl does not have the type of problem that several of you are insinuating. She eats whatever she wants, as much of it as she wants--plenty of which includes foods that many runners would consider unhealthy--and does not in any way restrict her calorie intake. She may have lost weight since the last Olympics because she is now consistently running 100+ mpw as a marathon runner, not a 10k runner, and as a result is having a difficult time eating enough calories. That is a legitimate explanation, but suggesting that she has an eating disorder is categorically false.