This study evaluated the effects of vitamin B supplementation on dementia, which is a broad category of brain diseases that cause a decline in mental ability. Data from elderly people were analyzed, revealing that B-vitamin supplementation can slow the shrinking of brain regions that are affected by Alzheimer’s disease and that are associated with mental decline. Further details can be found in the study.


Gwenaëlle Douaud, Helga Refsum, Celeste A de Jager, Robin Jacoby, Thomas E Nichols, Stephen M Smith, A David Smith


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