Homocysteine
What it is
Homocysteine is an amino acid produced during normal protein metabolism. It's normally broken down quickly with the help of B vitamins, particularly B12 and folate, so an elevated level often points to a slowdown somewhere in that process.
Why it matters
Elevated homocysteine has been linked to increased cardiovascular risk and is also one of the more actionable markers on a panel: it frequently responds to correcting an underlying B12, folate, or B6 insufficiency. It's also relevant to cognitive health research, where sustained elevation has been studied as a modifiable factor alongside other markers of brain aging. Because it sits at the intersection of nutrient status and cardiovascular risk, it's often most useful read alongside B12 and folate rather than on its own.
Homocysteine is one of the markers in Zaro's Signal panel and every tier above it.
This information is for educational purposes and is not a substitute for professional medical advice. Always talk to a physician about your specific results and health history.
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