Heart & metabolic
Homocysteine
Rises when B12, folate or B6 are short — a methylation stress signal. Higher results are the ones to watch. A common adult reference interval is 4–12 umol/L.
Typical adult range
- Reference interval
- 4–12 umol/L
- Often-cited tighter window
- 5–8 umol/L
Methylation status; high = B-vitamin need. Your own lab's printed range is the one that applies to your result.
What commonly moves it
These are commonly described physiological relationships, shared for education. They are not a diagnosis and cannot account for your medications, history, or symptoms — discuss your results with a licensed clinician.
Watching Homocysteine over time?
Dose Compass charts each draw, flags meaningful moves, and helps you prepare questions for your clinician.
Start tracking