High-dose vitamin D may boost brain heath in older adults at risk of dementia

• In 2021, there were about 57 million people globally living with dementia.
• Early symptoms of dementia can include signs of mild cognitive impairment (MCI) and sleep issues.
• Previous research shows certain nutrients may help slow dementia progression, such as vitamin D.
• A new study suggests that consuming a higher amount of vitamin D may improve cognitive function in older adults who have both MCI and problems sleeping.

According to the World Health Organization (WHO), in 2021 there were about 57 million people globally living with dementia, an umbrella term for diseases that impact a person’s ability to think and remember, such as Alzheimer’s disease.

Early symptoms of dementia can include signs of mild cognitive impairment (MCI) like memory loss, inability to problem solve, or difficulties speaking or remembering words, as well as sleep issues.

Previous research shows that diet can play an important role in the slowing of progression of dementia. Some foods, such as those that are high in nutrients like omega-3 fatty acids, B vitamins, antioxidants, and vitamin D, may be especially relevant to this equation.

Now, a new study published in the journal Sleep Medicine says that consuming a higher amount of vitamin D is linked to improved cognitive function in older adults who have both MCI and problems sleeping.