Some folks claim that they've been able to feel better by eating varied diet type foods (cut down on inflammation, gluten free, paleo, and it goes on and on). I personally haven't found anything that makes me feel better. I have MPA which left me with Chronic Kidney Disease, so my kidneys dump protein rather than using all I eat, do I have to make sure I get enough protein in each meal, usually first and the largest portion. Each form of vasculitis is different, though.