Vitamin B12 may protect the brain in old age

Sep 08, 2008

Vitamin B12, a nutrient found in meat, fish and milk, may protect against brain volume loss in older people, according to a study published in the September 9, 2008, issue of Neurology, the medical journal of the American Academy of Neurology.

For the study, 107 people between the ages of 61 and 87 underwent brain scans, memory testing and physical exams. Researchers also collected blood samples to check vitamin B12 levels. Brain scans and memory tests were also performed again five years later.

The study found that people who had higher vitamin B12 levels were six times less likely to experience brain shrinkage compared with those who had lower levels of the vitamin in their blood. None of the people in the study had vitamin B12 deficiency.

"Many factors that affect brain health are thought to be out of our control, but this study suggests that simply adjusting our diets to consume more vitamin B12 through eating meat, fish, fortified cereals or milk may be something we can easily adjust to prevent brain shrinkage and so perhaps save our memory," said study author Anna Vogiatzoglou, MSc, with the University of Oxford in the United Kingdom. "Research shows that vitamin B12 deficiency is a public health problem, especially among the elderly, so more vitamin B12 intake could help reverse this problem. Without carrying out a clinical trial, we acknowledge that it is still not known whether B12 supplementation would actually make a difference in elderly persons at risk for brain shrinkage."

"Previous research on the vitamin has had mixed results and few studies have been done specifically with brain scans in elderly populations. We tested for vitamin B12 levels in a unique, more accurate way by looking at two certain markers for it in the blood," said Vogiatzoglou.

Vogiatzoglou says the study did not look at whether taking vitamin B12 supplements would have the same effect on memory.

Source: American Academy of Neurology

Explore further: Researchers take 'first baby step' toward anti-aging drug

add to favorites email to friend print save as pdf

Related Stories

Researchers discover new producer of crucial vitamin

Sep 11, 2014

(Phys.org) —New research has determined that a single group of micro-organisms may be responsible for much of the world's vitamin B12 production in the oceans, with implications for the global carbon cycle and climate change.

Vitamin B12 may reduce risk of Alzheimer's disease

Oct 18, 2010

A new study shows that vitamin B12 may protect against Alzheimer's disease, adding more evidence to the scientific debate about whether the vitamin is effective in reducing the risk of memory loss. The research will be published ...

Recommended for you

Biomedical team creates 'nerve on a chip'

Dec 24, 2014

Michael J. Moore and J. Lowry Curley first met in the laboratory as professor and student. Now the two Tulane University researchers have started a new biomedical company that's winning praise and awards.

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.