How can I use theology to work with eating disorder patients?

Currently I am doing my first undergraduate degree, a BA in Theology. After I graduate, I would like to work with eating disorder patients. What would be an ideal graduate course for me to apply for? I do not want to be counselour and I would prefer not to go into a second BA degree. I have considered going into a Liscened Practical Nursing course, as they are quite short. But are there any other options for me?