Vitamin D tests involve taking a blood sample to measure the vitamin D levels in your bloodstream. There are two forms of vitamin D in the blood: 25-hydroxy vitamin D, or calcidiol, and 1,25-dihydroxy ...

Key Takeaways Vitamin D may help lower blood pressure in people with pre-existing high blood pressure and low vitamin D ...

New research links widespread Vitamin D deficiency to a 52% higher risk of repeat heart attacks. This discovery prompts a ...

Vitamin D is essential for many bodily processes, particularly the development of healthy bones. A 25-hydroxy vitamin D test can reveal whether the vitamin D levels in a person’s blood are within a ...

This article was reviewed by Darragh O’Carroll, MD. Understanding Blood Tests: How They Work and What They Can Tell You Blood ...

Q: I am wondering if I should have a vitamin D blood level checked. I am healthy and think I get enough sun exposure. Why might a person like me need the test? A: The importance of sufficient vitamin ...

Adults with heart disease who had a previous heart attack and took vitamin D doses tailored to reach optimal blood levels ...

KUWAIT CITY, Nov 12: Personalized vitamin D supplementation, guided by regular blood monitoring, has been shown to reduce the ...

When exposed to sunlight, your body manufactures vitamin D using a type of cholesterol. (Yes, even a certain amount of cholesterol is necessary for good health!) This is why vitamin D is often ...

Adults with heart disease who received tailored vitamin D doses had a 50 percent lower risk of experiencing a second heart attack — but how much is too much vitamin D?

Many people take vitamin D without knowing their current levels, which can be risky. Dr Hiremath mentions, “If someone is on ...

A new study suggests that personalized vitamin D3 supplementation, tailored to individual blood levels, may significantly ...