I agree with what everyone has said. If the doctor does not feel it is imperative that she begin taking medication immediately, I would seriously consider going on a vegan diet, with only minimal (or no) processed foods, including sugar. Some people can truly be helped through such a change. I would suggest she speak with her doctor about wanting to try the diet change first, and setting up a follow-up appointment in a few months (or sooner, again depending on how serious the doctor feels the situation is - like serious suicidal thoughts may need to be combated immediately with medication, but she could go vegan at the same time and then, with monitoring by her doctor, could try to go off the pills while maintaining a clean vegan diet.) It all depends on the individual, but I would definitely at least attempt the change, with monitoring. I know that when I allow myself to slip into eating more junk foods - sugar and processed stuff - that I start slipping back into behaviors that I exhibit when I'm depressed. Eating cleanly doesn't cure me, but makes it manageable without medication, so I try really hard to remind myself of that and stay away from the food that exacerbates it. So, for me I know it makes a difference, but it is going to depend on each individual.