Can vitamin D prevent a stroke?

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Vitamin D levels in the blood have been associated with blood pressure and blood clotting, two risk factors for stroke. In studies of populations, lower vitamin D levels were associated with heart disease and stroke. However, studies in which vitamin D was given to individuals have shown no benefit, suggesting that the associations seen in studies are due to other causes. In short, vitamin D supplementation does not appear to prevent a stroke, although vitamin D deficiency may need to be treated for other reasons, such as to prevent osteoporosis, as directed by a doctor.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.