I also was diagnosed with CAV, at my one-year tests. It’s scary because my understanding is there isn’t much you can do about it other than wait and hope it doesn’t progress. Sometimes it doesn’t. Sometimes there’s a low level found and it just stays there and doesn’t cause problems ... that’s what I’m hoping for! I was switched from Cellcept to Zortress (everolimus), which supposedly helps stall (and possibly even reverse) the progression. I asked my doctor if there was anything else I could do and she said stay healthy - eat (the usual) healthful foods and exercise, etc. I asked about supplements and she said the only one that might help is fish oil, but having said that, that’s only if I’m not eating fatty fish, which provides the same thing.