Critically sick sufferers: Nitrous oxide inactivates methionine synthase by means of oxidation with the cobalt in vitamin B12 and should bring on megaloblastic anemia. This enzyme is important for vitamin B12 and folate metabolism and plays a role in DNA and RNA synthesis along with the synthesis of other substances. https://archerywjmz.wannawiki.com/858757/the_ultimate_guide_to_fastgas