Homocysteine (Hcy)
Amino acid that damages blood vessel walls at high levels. Elevated by low B6, B12, and folate.
Typical normal range
5–15 µmol/L
If high ↑
Cardiovascular risk, stroke risk, B-vitamin deficiency, kidney disease
If low ↓
Generally favorable
What is a normal Homocysteine level?
A typical reference range is 5–15 µmol/L. Ranges vary between laboratories and can depend on age and sex, so compare your result with the range printed on your own report.
What does a high Homocysteine level mean?
Cardiovascular risk, stroke risk, B-vitamin deficiency, kidney disease. A single result rarely gives a diagnosis on its own; your doctor will interpret it alongside your symptoms and other tests.
What does a low Homocysteine level mean?
Generally favorable. Your doctor will interpret it alongside your symptoms and other tests.
About the Inflammation & Cardiac
Inflammation markers rise when the body is fighting infection, injury or long-term inflammation. Cardiac markers are released when the heart is strained or damaged, and help doctors assess heart conditions.
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Medical disclaimer: Reference ranges vary by laboratory, age, sex, and clinical context. This page is for educational purposes only and is not a diagnosis. Always discuss your results with a qualified healthcare professional.