Even ‘Normal’ Levels Of This Vitamin Are Linked To Cognitive Decline (M) Are we underestimating the impact of this vitamin on neurological health? Are we underestimating the impact of this vitamin on neurological health? Keep reading with a Membership • Read members-only articles • Adverts removed • Cancel at any time • 14 day money-back guarantee for new members Become a member Username or E-mail Password Remember Me Forgot Password