Cardiovascular

Homocysteine

Homocysteine. Measured in clinic at The Wellness in Marylebone, read by a doctor.

What It Is

Homocysteine is an amino acid produced as the body processes protein. It is normally recycled quickly with the help of B vitamins, particularly folate, B12 and B6, so only small amounts remain in the blood.

Why It Matters

When recycling is inefficient, homocysteine accumulates. Elevated levels are associated with cardiovascular risk and can also point to a shortfall in the B vitamins the recycling pathway depends on, which makes the marker a useful bridge between nutritional and cardiovascular health.

What Results Can Suggest

A raised homocysteine can suggest low folate or vitamin B12, an inherited variation in how the body processes it, or reduced kidney function, and it is associated with vascular risk. A normal level is generally reassuring on this pathway. Talk any result through with a doctor before acting on it.

This page is general information, not medical advice and not a substitute for a consultation. Reference ranges vary between laboratories, and results should always be interpreted by a doctor who knows your history.