Do offer to go with your friend or roommate to an appointment. Do give them a list of sources for professional help. Do not get impatient. Eating issues often take time to resolve. There is hope.
Many people fully recover from eating disorders.
If you have or know someone who has eating issues, we encourage you to get help. There are many resources listed below. Do it NOW while you are thinking of it and your courage is up. Reviving Ophelia . A Guide to Recovery.