Common Supplement May Have Surprising Effect on Brain Health, Study Finds
Summary
A new study found that older adults with memory problems and sleep issues who took higher doses of vitamin D supplements performed better on brain tests. The study does not prove vitamin D directly improves memory, but it suggests a possible link worth further research.Key Facts
- The study involved 54 adults aged 50 and over with mild cognitive impairment (MCI) and sleep disturbances.
- Participants taking 5,000 international units (IU) or more of vitamin D daily scored better on cognitive tests than those not taking supplements.
- Lower doses of vitamin D showed no significant effect on cognitive performance.
- The study was observational, so it cannot confirm vitamin D causes better brain function.
- Both types of vitamin D supplements (D2 and D3) showed similar results, with dose being more important.
- Vitamin D may help reduce inflammation, which is linked to cognitive decline and poor sleep.
- Researchers plan to conduct a clinical trial to test if vitamin D supplements improve brain health.
- More and larger studies are needed before recommending high-dose vitamin D for cognitive support.
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