| Effect | Increase |
| Trial Design | Non-controlled trial |
| Trial Length | 2-4 Weeks |
| Number of Subjects | 14 |
| Sex | Both Genders |
| Age Range | 45-64, 65+ |
A pilot study in persons who suffered from lacunar stroke given 1,000mcg as B12 daily for at least three weeks reported greater verbal learning but no significant influence on fatigue nor depressive symptoms.
