Hi Topaz, I think the B12 issue is best left to nature. What we know is protease are necessary for the metabolism of B12. The other thing we have seen is a huge possible increase in cancer and overall death risk from trying to resolve the lack of B12 through supplementation.Also, time and research has shown it has not been effective in reversing the course of these diseases. You also mention zinc. I have posted a study that shows heavy metal ions, such as zinc, have "chaperone" escorts to safely escort them through the interior of the cell and deliver them to the specific site where they are needed. Our cells need copper and other heavy metals, but when they are not properly chaperoned, they can destroy other cellular components. Again, best left to nature I think. On the question of stomach acid,sauerkraut can raise stomach acid if it is too low and lower it if it is too high. It does this instantly. There is no need to look any further for supplements etc. The sauerkraut will also replenish the pancreas and help with the digestion of proteins. Plus, it can kill pathogenic bacteria and viruses. There isn't a drug or supplement that can do all of this and with no side effects. Hi xrunner, I have a very comprehensive but simple approach to healing. Whole foods and whole herbs are an essential part of my recovery diet. It is one-third of my book though, so not practical or possible to detail it here. An important detail not to be overlooked though, would be that B12 is made my organisms in the soil. In order for our bodies to ingest B12, we need to eat animal protein that was raised on pasture. Ninety-five percent of our animals are raised on concrete. They contain little or no B12.