Vitamin B6
Vitamin B6 (pyridoxine) measures the level of this water-soluble vitamin in your blood. B6 is involved in over 100 enzyme reactions, including protein metabolism, cognitive development, and immune fu…
Category: Vitamins & Minerals
Also known as: vitamin b6, pyridoxine, pyridoxal phosphate, plp, vit b6, pyridoxal 5-phosphate
Reference range: 5–50 µg/L (Source: ABIM)
Standard unit: µg/L
High values may indicate
High vitamin B6 levels from chronic excessive supplementation may cause peripheral neuropathy (nerve damage), numbness, and difficulty walking.
Low values may indicate
Low vitamin B6 levels may indicate poor dietary intake, alcoholism, malabsorption, or use of certain medications, and can cause anemia, dermatitis, depression, confusion, and weakened immune function.
Frequently asked questions
- What is a normal Vitamin B6 level?
- A typical reference range for Vitamin B6 is 5–50 µg/L (source: ABIM). Reference ranges vary by laboratory, age, and sex, so always compare against the range on your own lab report.
- What units is Vitamin B6 measured in?
- Vitamin B6 is most commonly reported in µg/L. Labs in different countries may use other units — you can convert between them with BloodId's blood test unit converter.
- Where do Vitamin B6 reference ranges come from?
- BloodId uses ABIM standard reference ranges and educational information from MedlinePlus (see our methodology). Reference ranges still vary by lab, age, and sex, so always compare against your own report.
- Can I track Vitamin B6 over time?
- Yes. Upload results from any lab and BloodId charts your Vitamin B6 over time against its reference range, so you can see whether the trend is rising, falling, or stable.
Related biomarkers
Source: MedlinePlus, U.S. National Library of Medicine
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