My best friend has an eating disorder and makes me feel fat?

My BFF is 45 pounds. She is 10 years old and is 4'8. She never eats. She is a siz 4/5. She dosent complain about her weight but she skips lunch, skipped pizza at my birthday, and skiped breakest at a sleepover! All my friends think she is way tooooooooooo skinny! What should I do???

tell her you feel concerned/worried about her and how she is not eating healthy, tell her how important it is that she eats healthy what it can do to her if she doesn't. Also tell her how you feel about her putting you down about your weight.
If she is your BFF she shouldn't be putting you down about your weight because best friends don't do that to one another. If she truely loves and cares about you then she will understand and you guys will be able to work things out. If that doesn't work go to your mom about it or tell someone you trust that you are concerned for her like a school counselor maybe they will find out whats going on with her. They won't tell her who told them, but your best bet is to talk to her first maybe she will listen to reason...

fit body is better than skinny . trust yourself.
Tell her to eat something. This could be a REALLLYYY serrious problem if she never eats.
Talk to your mom or dad . It is very important for you to discuss this with them . You are very smart to know that this is not healthy . Keep eating good . Skipping meals is the worst thing that you could ever do . Talk to your parrents please they are really smart even though sometimes we may not think it .
1. Keep eating normally and healthily (meaning you can still include pizza, ice cream and other yummy foods in your diet).

2. Gently inform your friend that she is too skinny.

3. Thank God that you don't have an eating disorder. :))
You cannot let what she does or says to affect your self esteem. You may want to try talking to your parent/guardian and ask guidance from them. Some parents are open to advice so you could go to her parents, but some parents aren't so inviting and may get mad at you for "labeling" their daughter. Talk about it with your parents, but I advise against talking amongst your other friends about it, it may come back to bite you.
YOU shouldn't do anything.
At least, don't stop eating just cuz your best friends doesn't eat.
Maybe you can like, talk about food infront of her, you know, get her hungry and all that.
But don't try to force anything on her, it's probably just a stage she'll grow through.
No worries, nothing serious'll happen, she's just 10.
Studies show eating disorders happen mostly from ages 13 to 17.
[I know that from an assignment, lol]
So don't freak out.
And don't stop eating urself. =)