"Folic Acid Fortification Boosts B Vitamin in US"
"Vitamin B levels have improved significantly in every segment of the US population since the Food and Drug Administration mandated folic acid fortification of enriched cereal-grain products in 1998.
Homocysteine and methylmalonic acid, which are indicators of generalized inflammation and possible cardiovascular risk factors, usually decline when folate levels increase."
http://www.nlm.nih.gov/medlineplus/news/fullstory_26505.html
I've been taking folic acid for 7 years now. My homocysteine level was quite high several weeks after my heart attack back then and since starting the folic acid it has stayed down - so I'm a believer. 
Do you take additional Folic Acid?! 
Hugs, Teri 