I wonder if you can maybe work on restoring your gut a bit. I'm a fanatic for kefir. I got my own grains and I've brewed some in coconut milk, but I love the goat milk the best.

Here's a nice chart you might find useful: http://www.branwen.com/rowan/oxalate.htm

Here is something about that oxalate absorbing microbe: http://www.csa.com/discoveryguides/...tic/review4.php

Wish we could get our hands on this stuff now!
http://news.ufl.edu/2001/10/24/stone-bacteria/

Giving rats high doses of a naturally occurring intestinal bacterium called Oxalobacter formigenes safely lowers chronically high levels of oxalate - a byproduct of digestion that is a major cause of kidney stones - to near normal, the scientists reported in the October issue of The Journal of Urology.

Scientists at UF and other institutions previously linked kidney stone formation to a lack of O. formigenes in the body, but the article provides the first published evidence that supplementation with the bacteria may help prevent stone formation. The research was conducted in collaboration with scientists at Ixion Biotechnology, a UF technology licensee located in Alachua, Fla.

Check this out, do you takes lots of ascorbic acid? http://www.urologystone.com/CH18WhatsNew/2001AUA.html