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Vitamin C (Ascorbic Acid)
Vitamins
Vitamin C (Ascorbic Acid)
Also known as: Vit C, Ascorbate
COMMON RANGE
0.4 – 2
mg/dL
0
2.95
M
Mayo Clinic Laboratories
Adult
↗
See all sources ↓
CONVERT & COMPARE
mg/dL
=
68.1
µmol/L
=
68.1
umol/L
=
68.1
mcmol/L
Reference ranges across 10+ sources
Adult reference ranges from 3 entries across 2 named sources, shown in mg/dL. Compare side-by-side.
SOURCE
SEX
AGE
RANGE
VISUAL
CITE
M
Mayo Clinic Laboratories
All
≥18y
0.4 – 2 mg/dL
↗
Q
Quest Diagnostics
Male
≥18y
0.2 – 2.1 mg/dL
↗
Q
Quest Diagnostics
Female
≥18y
0.3 – 2.7 mg/dL
↗
M
Mayo Clinic Laboratories
All · ≥18y
↗
0.4 – 2 mg/dL
Q
Quest Diagnostics
Male · ≥18y
↗
0.2 – 2.1 mg/dL
Q
Quest Diagnostics
Female · ≥18y
↗
0.3 – 2.7 mg/dL
Related biomarkers
Often tested alongside vitamin c (ascorbic acid) or part of the same panel.
Vitamin D, 25-Hydroxy
Vitamins
Vitamin D, 1,25-Dihydroxy
Vitamins
Vitamin B12 (Cobalamin)
Vitamins
Folate (Serum)
Vitamins
Folate (RBC)
Vitamins
Methylmalonic Acid (MMA)
Vitamins
Sources
M
Mayo Clinic Laboratories
Q
Quest Diagnostics
Last updated 2026-05-02
This page aggregates publicly available reference data and clinical information from Mayo Clinic Laboratories and other sources. For general wellness information only — not medical advice. For diagnosis or treatment of any condition, talk to a qualified clinician.
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