So, I have a small list of friends on MFP. Their diaries or losses all post on my home page. Anyway, there is this one girl (who I don't know personally) who has been losing a lot of weight. At first I would hit the like button to be supportive, but over the last month or so I've actually started worrying about her. She looks like an average size person in her profile pic, but she keeps losing weight. And she lists everything in her food diary- like even cinnamon. So it kind of looks like she's eating but she's listing herbs ect.
At this point I feel like she probably has an eating disorder. I'm really torn, because I know it isn't my business; especially since that pic could be old and I really don't know her circumstances. But another part of me feels like I can't in good conscious ignore what seem like obvious signs. I want to be supportive especially to people who are working to achieve their goals; but I feel like I'm cheering her on while she starves herself. Any advice?