CARDIOVASCULAR
Homocysteine
Also known as Hcy
What it is
Homocysteine is an amino acid intermediate in methylation pathways. Elevated levels accompany B-vitamin insufficiency and cardiovascular risk.
Why it matters
Homocysteine is a cross-domain marker: cardiovascular, cognitive, and methylation health all reflect its state. Elevated homocysteine is often correctable with targeted B vitamins.
Range GPLX watches for
GPLX generally targets homocysteine below 8 µmol/L in symptomatic patients. The lab reference is wider.
This educational range is not a personal diagnostic threshold. Your physician interprets your result in context of your full biomarker panel, medications, symptoms, and history.
What abnormal values can suggest
If low
A low homocysteine value is generally favorable.
If high
A high homocysteine value can suggest B12, folate, or B6 insufficiency, methylation issues, kidney disease, or hypothyroidism.
This marker is reviewed when clinically appropriate as part of physician-directed labs. Membership is $39.99/month; consultation is $30.
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