Biomarker µmol/l
Homocysteine
Amino acid intermediate as vascular and cognition marker
Also known as
tHcy total homocysteine
Definition
Homocysteine is a sulfur-containing amino acid derived from methionine metabolism, broken down by folate, vitamin B6, and vitamin B12. Elevated levels are an independent risk factor for heart disease, dementia, and stroke. Particularly relevant for vegans and individuals with MTHFR polymorphisms, who are prone to hyperhomocysteinemia.
| Parameter | Value |
|---|---|
| Unit | µmol/l |
| Reference Range | < 15 µmol/l (general) |
| Optimal Range (lab2go) | < 10 µmol/l (lab2go Optimum Zone) |
Last Reviewed: 17 April 2026 · maritta