Biomarkers

4 biomarkers tracked with reference ranges and optimal ranges

Biomarker Category Unit Reference Range Optimal Range
Folate Vitamin ng/mL 3.0 – 20.0 10.0 – 20.0
Vitamin B12 Vitamin pg/mL 200.0 – 900.0 400.0 – 700.0
Vitamin C Vitamin mg/dL 0.4 – 2.0 0.6 – 1.5
Vitamin D (25-OH) Vitamin ng/mL 30.0 – 100.0 40.0 – 70.0

Understanding Ranges

Reference range — the clinical "normal" range used by labs. Values outside this range are flagged as low or high.

Optimal range — a narrower band associated with better health outcomes in research. Values within reference but outside optimal are marked "suboptimal".

Always consult a healthcare provider for interpretation of your specific results.