I am also in Australia. My Dr hasn't mentioned anything about over or undermethylation, although I know that it's crucial to treatment to understand which from reading the info from pffeifer institute. Which Dr did you see? I've been referred to one on the Gold Coast, but it seems to be more expensive than warranted. I see a good natropath (one who is quite scientifically minded), and when I told her I had severe pyrroluria, she put me on activated B6 and zinc, (I'm already taking the other supplements that are commonly mentioned as important). However, I'm concerned that simply doing the urine test is not enough to prescribe the correct doses, and that I really should take it futher. Any suggestions?