Awesome! Thanks, everybody!
We did get the counseling center involved on a preliminary event - we brought a speaker (a clinical psychologist who specializes in eating disorders and works with our local philanthropy) to campus a couple days before the week started. This was good because we were also able to give out flyers for the 5K. The topic was "Eating Disorders: Facts, Myths, and How to Help".
We also have been working on a positive self-image quilt. Because low self-image is a big factor in eating disorders, we had students make paper quilt patches with inspirational quotes or pictures. We are going to put it all on a big banner (quilt), laminate it, and hang it on campus.
I like the assessment idea though. Maybe we could do that next time or for a health fair or something.