Why vitamin D advice fails people with darker skin tones - melanin-rich skin has evolved different vitamin D metabolism ...

Vitamin D also helps blood vessels work better. It may help them stay flexible and relaxed. When blood vessels are relaxed, ...

For adults, a level of vitamin D in the blood of 20 nanograms per milliliter (ng/mL) or above is generally considered adequate. Levels below 20 ng/mL are generally too low for adequate bone health ...

Historically, 400 IU (10 ug) of vitamin D was recommended for better health because it closely approximated the amount of vitamin D in a teaspoonful of cod liver oil. However, 800 to 1,000 IU is ...

There is evidence that suggests a connection between vitamin D blood levels and cardiovascular disease, the atherosclerotic variety in particular. Researchers from Germany took a closer look at ...

Vitamin D supplements may help prevent the loss of telomeres, DNA sequences that shrink with aging, a large study shows. But ...

A new study finds that safe levels of vitamin D supplementation can promote longevity by reducing a certain type of cellular ...

A new study found that vitamin D supplementation improved a key marker of biological aging—but it's probably too soon to rush ...

Individuals with low vitamin D levels are more likely to have abnormal ... A lipid profile test is a blood test that measures total cholesterol, LDL cholesterol, HDL cholesterol, and triglyceride ...

In the largest study of its kind, researchers tested the vitamin D status of more than 70,000 people as babies.