High levels of homocysteine have been linked to brain atrophy and dementia. Taking B vitamins may be a low-cost way to help protect brain health.
However, past research reviews have shown mixed results, and it’s not clear why the findings have been inconsistent. The overall quality of the evidence has also not been carefully evaluated.
In this episode, Editor-in-Chief Douglas Taren talks with Ross Grant, co-author of the featured article. They discuss the results of his team’s systematic review and meta-analysis, which looked at how B vitamin supplements affect overall cognitive function in older adults.