Description
Homocysteine is an amino acid that, when elevated, is associated with increased cardiovascular risk and certain vitamin deficiencies, making it a useful marker in a thorough heart health review.
About the Homocysteine Test
This test measures the level of homocysteine in your blood. Raised levels have been linked to a higher risk of heart disease, stroke and blood clots, and can also indicate a deficiency of folate or vitamins B6 and B12. Because elevated homocysteine can often be addressed through diet or supplementation, testing provides an actionable insight for those focused on long-term cardiovascular and neurological health.
Preparation and turnaround
A fasting sample is generally preferred, so a morning appointment after an overnight fast is recommended; our team will confirm when you book. A quick venous sample is taken and results are usually available within one to two working days. Your doctor can advise whether vitamin supplementation is appropriate based on your result.
Frequently asked questions
Should I fast before a homocysteine test?
A fasting sample is usually preferred for accuracy. We will confirm the recommended preparation when you book.
What causes high homocysteine?
Common causes include deficiencies of folate, vitamin B6 or B12, as well as genetic and lifestyle factors. It can often be improved with diet or supplements.
Why is homocysteine linked to heart health?
Elevated homocysteine is associated with damage to blood vessels and an increased risk of heart disease, stroke and clots.
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