Medically reviewed by Soma Mandal, MD A vitamin D test is a blood test that measures the level of vitamin D (calciferol) in ...

Vitamin D affects how your immune system works, and plays a role in controlling certain types of inflammation, including the ...

Erasmus University Medical Center researchers in Rotterdam have tracked vitamin D supplementation improvements in bone ...

“Vitamin D deficiency is very common and ongoing research has shown its impact on physical and mental well-being,” says Dr.

The groups who benefited the most were non-Westerners, those who started with a 25-hydroxy vitamin D level of less than 15.0 ng/mL (below 20 ng/mL is generally deemed to be vitamin D deficiency ...

It is a proven fact that sunshine is the best source of vitamin D, and as the winters approach, we may be getting less of ...

Compared with the general population, patients with erythropoietic protoporphyria have notably lower bone mineral density, ...

Vitamin D deficiency is common in children with severe obstructive sleep apnea (OSA) and is associated with increased OSA severity. Lower serum 25-hydroxyvitamin D levels correlate with higher ...

Despite the importance of vitamin D for overall health, it is estimated that about one billion people worldwide have a deficiency, usually defined as having serum levels of 25-hydroxyvitamin D 3 ...

Learn about the best time of day and way to take vitamin D and if you should consider a supplementing with this nutrient.

The activated vitamin D (25-hydroxy vitamin D3) in Doctor’s BEST Vitamin D3 2500IU with Vitashine D3 not only influences bone health but also helps support immune system responses, the heart and ...