Vitamin D deficiency is prevalent throughout the world, and growing evidence supports a
requirement for optimal vitamin D levels for the healthy developing and adult brain. Vitamin …

In recent years, emerging evidence has linked vitamin D not only to its known effects on
calcium and bone metabolism, but also to many chronic illnesses involving neurocognitive …

Objective: To determine whether low vitamin D concentrations are associated with an
increased risk of incident all-cause dementia and Alzheimer disease. Methods: One …

The number of individuals aged 65 and older is expected to more than double from 2012 to
2060. The role of vitamin D in the prevention and treatment of diseases associated with …

Background Vitamin D deficiency has been implicated as a risk factor for dementia in
several cross-sectional studies. We tested the hypothesis that reduced plasma 25 …

Low vitamin D levels have been reported to contribute to the risk of cardiovascular events
and mortality, especially stroke. In the present study we therefore evaluated the short-term …

Objective: To test the hypothesis that hypovitaminosis D is associated with a higher risk of
cognitive decline over a 4.4-year follow-up in a large sample of older adults. Methods: This …

The active form vitamin D is a seco-steroid with multiple neurotrophic and neuroprotective
functions in the central nervous system. Robust evidence from studies in animals suggests …

Background and purpose Some recent studies in older, largely white populations suggest
that vitamin D, measured by 25‐hydroxyvitamin D [25 (OH) D], is important for cognition, but …

Objectives To examine the relationship between 25‐hydroxyvitamin D (25 (OH) D) levels
and cognitive performance over time in older adults in the Health, Aging and Body …