I don't know if there is anything that doesn't actually glorify EDs. They're a hard to try to prevent. i.e. While handing a girl a book on ED may seem like a good idea, I know that when I was given one I scanned through the pages to find tips or tricks and envied the girls that were that sick. A lot of the ED lit, while they don't purposely try to glorify it, ends up doing that same thing. It could cause more harm than good. Instead maybe get her some body positivity books? Or if she's binge eating, maybe ask her why she's so hungry? Ask her if she's truly hungry or just bored. If she says bored, do an activity with her. But don't focus on the food aspect.