Dear Amy: Recently, my friend and I started dieting together. Even though she lives across the country, we talk frequently about the weight we've lost and what we've done for ourselves.
The other day she told me that she was only eating one meal a day because she wants to be skinny, and today she posted a tweet about how she was going to lower her food intake even more.
I've tried telling her that it's OK to eat and that she'll get sick, but she won't listen to me.
Is there anything I can do for her?