I've created a Yahoo group so people can share what they've learned about MTHFR mutations. If you are interested in joining, please go to http://health.groups.yahoo.com/group/MTHFRdiscussions . Thanks! Geneoptimize (talk) 18:16, 15 August 2012 (UTC)
For an excellent and comprehensive overview of folate (naturally occurring folate vs. manufactured folic acid, etc.), see Linus Pauling Institute entry on Folate.
Do also view MTHFR.