• Vitamin D is a fat-soluble vitamin that is important for bone health and immune system support
• Australian researchers followed a group of older people to see whether vitamin D supplements could reduce the risk of major heart disease events.
• The researchers gave the test group a monthly vitamin D supplement which they took for five years.
• While the risk reduction was not as great as the researchers had hoped, they did learn that the people who took vitamin D supplements had a small risk reduction for certain major cardiovascular events.

By Erika Watts on July 3, 2023 — Fact checked by Patricia Weiser, PharmD

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