Vitamin C (Ascorbic Acid)
Vitamin C is involved in collagen synthesis and immunity and helps absorb iron. The body does not store it.
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Normal ranges
Adults: 4–15 µg/mL.
Units: µg/mL
Causes of deviations
Low levels:
Low intake of fresh vegetables and fruit, smoking, chronic illness.
High levels:
High-dose vitamin C supplements.
When to see a doctor
If the value is outside the range, discuss it with your doctor.
Related biomarkers
Panels
Vitamin panel
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