metabolic
Vitamin D (25-OH)
25-hydroxyvitamin D, the storage form of vitamin D and the standard clinical measure of vitamin D status.
Why test this
Vitamin D deficiency is widespread and linked to bone, immune, and metabolic outcomes. One of the highest-value low-cost tests.
Optimal Range
50-80 ng/mL (optimal); > 30 ng/mL (sufficient).
Note: “optimal” ranges from longevity research often differ from standard clinical reference ranges. Always interpret results with a qualified clinician familiar with your full picture.
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Ulta Lab Tests
Vitamin D (25-OH)
- No doctor visit required
- Quest & LabCorp network
- Results in 1-3 days
- Order online