Is there a relationship between B vitamin intake and cognitive impairment later in life? Original paper

In this cross-sectional study in older adults in the United States, higher intakes of B vitamins, particularly niacin, were associated with lower incidence of cognitive impairment.

This Study Summary was published on March 26, 2025.

The study

This study used data from the 2011-2014 National Health and Nutrition Examination Survey (NHANES) to examine the associations between B vitamin intake and cognitive impairment in 2,716 participants aged 60 or older.

Dietary intake of B vitamins was assessed by asking the participants to recall their diets over the past 24 hours at 2 different points in time (24-hour dietary recalls). Cognitive function testing included the Consortium to Establish a Registry for Alzheimer’s Disease (CERAD) word list learning test, the Digit Symbol Substitution Test, and the Animal Fluency Test.

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The results

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This Study Summary was published on March 26, 2025.