There are two forms of vitamin D in the blood: 25-hydroxy vitamin D, or calcidiol, and 1,25-dihydroxy vitamin D, or calcitriol. Tests will measure the amount of 25-hydroxy vitamin D in the blood. This ...

It’s Wellness Wednesday, and this week’s focus is on vitamin D and its role in overall health. Many people assume they’re getting enough during the summer months, but that’s not always the case. We ...

Medically reviewed by Allison Herries, RDN Key Takeaways Vitamin D plays a vital role in overall health. It is a fat-soluble ...

You’ve heard of vitamin D – it’s the supplement that experts all agree we could do with taking, especially during the winter. However, this is because vitamin D is not technically a vitamin, it’s a ...

Nearly a quarter of Americans are estimated to have a deficiency in vitamin D. Are you one of them? A 2022 study of National Health and Nutrition Examination Surveys (NHANES) data estimated that about ...

Swiss-based Roche announced this month that it has received U.S. regulatory clearance for a less-complex vitamin D test in the United States, which the company said opens the door to more efficient ...

Vitamin D levels can be measured with a blood test. This test can indicate whether you have adequate levels, are at risk of a ...

Lauren Silva, a freelance writer in New York City, believes in feeling good in your body and making that experience accessible to everyone across generations. The proof is in her ever-piling browser ...