Vitamin D - 25(OH)D

in Serum

Also known as:

25-Hydroxycalciferol

S-25-OH-D

Vitamin D

25(OH)D

25-hydroxy-vitamin D

ng/mL

µg/L

nmol/L

Enter value to interpret your result

Optimal Vitamin D - 25(OH)D reference ranges for longevity

According to Peter Attia, Vitamin D - 25(OH)D should be between 30 and 80 ng/mL
According to OptimalDX, Vitamin D - 25(OH)D should be between 50 and 90 ng/mL

To see these ranges in your preferred unit, enter your lab result above.

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About the site author
My personal mission is to extend human lifespan by collectively adding 1 million years to people's lives.
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Zsolt Szabo
Precision Health Consultant for Longevity Clinics, Biohacker, and Software Engineer

Please send me relevant research and feedback.

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I am particularly interested in research on biomarkers associated with all-cause mortality and on defining optimal reference ranges.