Quote Originally Posted by doc_rice View Post
According to Wikipedia (on Folic Acid/B9):

Memory and mental agility

In a 3-year trial on 818 people over the age of 50, short-term memory, mental agility and verbal fluency were all found to be better among people who took 800 micrograms of folic acid daily ( twice the current RDA ) than those who took placebo. The study was reported in The Lancet on 19 January 2007.

Or on Pantothenic acid/B5:

Dream Stimulant

Taken before bedtime can increase the likeliness of having/remembering dreams with elevated vividness.
Finally an answer. I've had a thread open on this for a week with no bites.
Looks like best the B vitamins are best taken before bed.