It is the most sensitive measure, though experts have called for improved standardization and reproducibility across different laboratories. According to MedlinePlus, the recommended range of 25(OH)D is 20 to 40 ng/mL (50 to 100 nmol/L) though they recognize many experts recommend 30 to 50 ng/mL (75 to 125 nmol/L).
The most sensitive measure, but experts have called for improved standardization and reproducibility across different laboratories. MedlinePlus recommends a range of 25(OH)D of 20 to 40 ng/mL (50 to 100 nmol/L), though some experts suggest a wider range of 30 to 50 ng/mL (75 to 125 nmol/L).