Some vitamin D tests may give misleading results despite progress made in recent years to improve the quality of these assays, according to the US Centers for Disease Control and Prevention (CDC).

Should you get a blood test to see if you're deficient in vitamin D? It sounds like such a good idea, seeing as how most people don't get enough sunshine to make vitamin D themselves. And the tests ...

We tested the best vitamin deficiency tests from LetsGetChecked, Everlywell, and LabCorp, and our testers found them easy to use and informative. Learn more about the best vitamin deficiency tests ...

WASHINGTON — The nation’s largest medical lab company says it recently discovered and fixed a problem that led to inaccuracies in a small number of tests for vitamin D deficiency. Quest Diagnostics of ...

Taking both a multivitamin and vitamin D can help support nutrient needs, but it's important to keep your total vitamin D intake within safe limits.

The nation's largest medical lab company says it recently discovered and fixed a problem that led to inaccuracies in a small number of tests for vitamin D deficiency. Quest Diagnostics of Madison, N.J ...

The global vitamin D testing market size is forecasted to reach USD 9.98 billion by 2030, expanding at an impressive compound annual growth rate (CAGR) of 5.1% from 2023 to 2030, according to a new ...

Higher levels of vitamin D than traditionally considered sufficient may help prevent COVID-19 infection — particularly in Black patients, shows a new single-center, retrospective study looking at the ...

There's not enough evidence that screening the general public for vitamin D deficiency helps reduce the risk of disease, the U.S. Preventive... Should you get a blood test to see if you're deficient ...