Absent-mindedness in the over-50s is significantly improved when people take folic acid supplements, according to a large study reported in January's Lancet. Short-term memory, mental agility and verbal fluency tests were all better among people who took the supplement for three years, compared with a group given a placebo.
The Lancet 2007; 369:208-216

For the abstract, visit: http://www.thelancet.com/journals/lancet/article/PIIS0140673607601093/abstract

Ref: http://www.foodforthebrain.org