Link between cognitive decline dementia and low vitamin d

Vitamin D insufficiency among the elderly is highly correlated with accelerated cognitive decline and impaired performance, particularly in domains such as memory loss that are associated with Alzheimer's disease and dementia, new US data shows. The researchers, from the University of California Davis Alzheimer's Disease Center and Rutgers University, say the effect is "substantial," with individuals with low vitamin D declining at a rate three times faster than those with adequate vitamin D levels.

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