For Vitamin B9: Take folate instead of folic acid

Folic acid is a synthetic type of B vitamin 9 used in supplements and fortified foods, while folate is the natural form found in foods

If you take a B9-vitamin supplement, make sure it contains natural folate rather than synthetic folic acid.

Info source:

Http://articles.mercola.com/sites/articles/archive/2013/06/03/vitamin-b.aspx