Eowyn's regimen is a great start.

lindberg's regimen is very weak.

A B-50 complex or B-100 complex is a good start. It is a somewhat standard complex of 50mgs (B-50) or 100 mgs (B-100) of most B's and 100 or 50 mcg's of B-12.

I take a pack of vitamins I get at Costco. It is called "Daily Multi Pack." I add a B-50 and 250 mcg of B-12, 100 mgs of B-6, 100 mgs of C, 250mgs of niacin, calcium, magnesium, and a few others.

I have been on this regimen for most of 30 years. It was prescribed by a MD when I was in a highly symptomatic state. My wife can tell when I have missed a few days. My demeanor changes.

Some people do a more intense regimen by spreading the supplements over the day. The nutrition forum has some info about this idea. I take it all at once after breakfast.