Summary
A new study suggests vitamin D may help protect brain health and slow cognitive decline in older adults. Researchers at Emory University found that older people with mild cognitive impairment who took higher amounts of vitamin D performed better on cognitive tests than those who took none. The supplements also appeared to improve sleep problems, which often accompany cognitive decline. The findings add to growing evidence that adequate vitamin D may support memory and thinking as people age. However, researchers caution that more studies are needed to confirm the benefits and determine safe dosages. People should consult healthcare professionals before taking high-dose vitamin D supplements.
Huffington Post