Vitamin D3 breakthrough halves risk of second heart attack

November 10, 2025

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1 min read

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ScienceDaily

Intermountain Health researchers discovered that customizing vitamin D3 doses for heart attack survivors slashed their risk of another heart attack by 50%. The strategy involved frequent monitoring and dose adjustments to reach ideal vitamin D levels. Traditional studies didn’t track blood levels, missing this critical link.

In a large randomized clinical trial, researchers found that managing patients' vitamin D levels through a "target-to-treat" approach -- where blood levels were monitored and dosages were adjusted to reach an optimal range -- cut the likelihood of a ... [3774 chars]

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