Vitamin B Supplements do not work and may be a problem

http://www.neurology.org/content/early/2014/11/12/WNL.0000000000001050.abstract

http://www.medpagetoday.com/Geriatrics/GeneralGeriatrics/48576?

It is a fact correlation is usually not causation. Hyperhomocysteinemia is probably the witness of dysmetabolism and not the cause of mental deterioration.