Lower Levels Of Vitamin B-12 Linked To More Rapid Cognitive Decline In Older Adults

U.S. researchers have discovered a link between lower levels of vitamin B-12 and cognitive decline in the older adults. The study of 549 men and women grouped participants according to blood levels of vitamin B-12, and screened for dementia using a commonly applied test. They found that those with lowest levels of B-12 were more likely to suffer rapid cognitive decline over time. The researchers emphasized that the study did not show causation, but the associations raised concern that some cognitive decline may be the result of inadequate vitamin B-12 in older adults. They also noted that maintaining normal blood levels can be a challenge for older people, who may need B-12 fortified foods and supplements.