Eastenders
I think it is very good that they have introduced a bulimia/anorexia storyline, and also for not having it as the "main story". Just something in the background.
I had a similar issue in the 1980s and ended up in hospital twice because of it, but I hid it from my family. Thankfully I got through it myself, but if I'd continued for even a few more weeks I could have died from it. It is a serious problem and needs to be addressed.