25(OH) 2 D is less tightly regulated than assumed and may become a reliable predictor of clinical outcomes in some conditions. Learning Objectives: Understand the role several hormones, including 1,25 ...

Background: Vitamin D deficiency ... We measured plasma 25-hydroxyvitamin D (25(OH)D) concentrations in a random sample of 475 children (mean ± standard deviation age: 8.9 ± 1.6 years) and ...

before recommending the 25-OH vitamin D test. Health care professionals need to keep in mind that in general, 100 IU (2.5 mcg) of vitamin D per day can raise the vitamin D blood test only 1 ng/ml ...

The association between early childhood serum 25-hydroxyvitamin D (25(OH)D) and eosinophilic asthma remains unclear. We ...

These new recommendations included limiting vitamin D supplementation beyond the daily recommended intake to specific risk groups and advised against routine 25-hydroxyvitamin D [25(OH)D] testing ...