B-vitamins boost memory and reduce depressive symptoms in the elderly
Older people can begin to forget important information they previously were easily able to recall, such as appointments, conversations, or recent events. Others may lose the ability to make sound decisions, judge time, the sequence of steps to complete a task, or visual perception. These signs of mild cognitive
impairment may or may not progress to more serious cognitive conditions. In this study, 48 adults with mild cognitive impairment and depressive symptoms, age 65 and older, and living in a care facility, took a placebo or a multivitamin with vitamins B6, B12, and folic acid. After 12 weeks, while there were no changes for placebo, those in the B-vitamin group saw improvements in cognitive test scores and had significantly fewer depressive symptoms. Doctors also measured signs of inflammation and found lower homocysteine levels in the B-vitamin group.

Reference: J Nurs Scholarsh. 2016 May;48(3):223-231.
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