A common vitamin could cut the risk of a second heart attack in half. Here’s how

Getting enough vitamin D isn’t just good for your bones and muscles. For people who have had a heart attack, vitamin D3 supplements could cut the risk of a second one in half, a small new study suggests.

The findings indicate that targeted treatment to raise patients’ vitamin D levels could be a simple way to lower their risks – though more research is needed to confirm the link.

The study included more than 600 people who had recently had a heart attack. They were either given standard treatment or vitamin D3 supplements to raise levels of the vitamin in their blood to more than 40 nanograms per millilitre (ng/mL).

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The body creates vitamin D naturally from direct sunlight on the skin, but an estimated 13 per cent of people in