I would suggest that both you (GuestPJay892) and the author of the article be tested for the MTHFR gene. (Yes, I know it looks like a swear word, and believe me, if you have it you do want to swear) but the abbreviation stands for Methylenetetrahydrofolate reductase. If you have the gene (one or two copies, it all depends on your DNA) your body cannot properly...