High-dose vitamin D may improve cognition among those at risk of dementia, study finds
With more than 7 million Americans living with Alzheimer's dementia—a number projected to reach nearly 13 million by 2050—new Emory University research suggests that higher vitamin D supplement intake may be associated with better cognitive function in adults at elevated risk of dementia.
A recent Emory University study reveals that higher vitamin D supplement intake may be linked to better cognitive function in adults at elevated risk of dementia. The research, published in Sleep Medicine, involved 54 adults with sleep disturbances and mild cognitive impairment (MCI), two early signs of dementia. Participants who took at least 5,000 IU of vitamin D daily performed better on the Montreal Cognitive Assessment (MoCA) test, scoring more than 13% higher than those who didn't supplement.
Lower daily doses of vitamin D did not show any association with improved cognition. The timing of intervention is crucial, as MCI often indicates a critical window for brain health support. The study also found that the form of vitamin D—D2 or D3—did not affect cognitive performance. With over 7 million Americans diagnosed with Alzheimer's dementia, projected to reach nearly 13 million by 2050, this research highlights the potential of accessible and modifiable factors, like vitamin D intake, in managing cognitive decline.
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