Doctors use the 25-hydroxy vitamin D test to monitor your vitamin D levels. Low levels can mean you need to spend more time outdoors or adjust your diet. But it can also occur with certain medical ...

Research suggests a link between low vitamin D levels and depression, potentially due to vitamin D’s role in brain function, serotonin production, and inflammation regulation. But more research is ...

The connection, if any, between vitamin D and cholesterol is unclear. Some research suggests that vitamin D supplements may improve cholesterol levels. However, others indicate that vitamin D has no ...

This easy-to-take liquid supplement from Double Wood Supplements includes 5,000 IU of vitamin D3 and 200 micrograms (mcg) of vitamin K2 to support bone and joint health. The addition of vitamin K2 ...

For a while vitamin D was looking like a bona fide health elixir. It was recognized a century ago as the cure for rickets, a childhood disease that causes weak and deformed bones. Then, in the early ...

Few health issues affect as many age groups and are potentially linked to as many health conditions across as many geographical regions as vitamin D deficiency. Indeed, poor vitamin D status is a ...

Vitamin D is important to the health of every system in the body, and yet many people do not get the recommended amount. “Many, many Americans — almost half — are vitamin D deficient,” says David O.