Higher vitamin D intake and serum 25(OH)D levels may provide significant benefits for cancer incidence and mortality, according to the results of a meta-meta-analysis published in Nutrients.

Free 25(OH)D is a stronger predictor of all-cause mortality than total 25(OH)D in older men. Free 1.25(OH)2D, the biologically active metabolite, was not predictive of all-cause mortality.

The test is also known as the 25-OH vitamin D test and the calcidiol 25-hydroxycholecalcifoerol test. It can be an important indicator of osteoporosis (bone weakness) and rickets (bone malformation).

The major circulating form of vitamin D, 25(OH)D, is measured using a blood test. Of the 386,406 patients, 33,546 people developed coronary heart disease, 18,166 people had a stroke and 27,885 ...

Researchers have identified in a new study that increased serum 25-hydroxyvitamin D (25(OH)D) is linked with lower risks of ...

Middle-aged women with serum 25-hydroxyvitamin D levels less than 20 ng/mL should use vitamin D supplementation, according to study findings published in The Journal of Clinical Endocrinology ...

25(OH)D levels regulate multiple enzymes involved in the production of steroid hormones, such as adrenal steroid hormones, sex hormones, and sex hormone signaling. Vitamin D metabolizes enzymes in ...

1,25 dihydroxy vitamin D 3 (1,25(OH) 2 D 3) is a lipid-soluble hormone that has well-established classic function in maintaining calcium homeostasis and promoting bone mineralization. 3 In ...

Low plasma 25(OH) vitamin D level is associated with increased risk of COVID‐19 infection: an Israeli population‐based study. The FEBS Journal, 2020; DOI: 10.1111/febs.15495; ...

The Architect 25-OH Vitamin D assay is a chemiluminescent microparticle immunoassay that measures 25-hydroxyvitamin D, the stable form of Vitamin D. For more information call (800) 633-9110 or ...

Of the participants, 95.5% were vitamin D-deficient at baseline; the mean end-of-study 25(OH)D concentrations were 31.0 and 10.7ng/mL for those randomly assigned to vitamin D and placebo ...