Taking a vitamin D supplement may lower your risk for dementia. Here are the groups who may benefit most

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Key takeaways

• Vitamin D supplementation may lower your risk of dementia—especially if you're older and female.
• It's estimated that more than 150 million globally will live with dementia by 2050.
• For those between ages 1 and 70, the recommended dietary allowance of vitamin D is 600 IU.

Taking a vitamin D supplement may lower your risk of dementia—especially if you're older and female, according to new research.