Inflammationµmol/l
Homocysteine
Optimal
< 10 µmol/l
Why
Marker of B-vitamin status and methylation health; above 12 means faster brain atrophy and dementia risk, reversible with B vitamins (VITACOG).
How often
Every 2 years after 50.
What moves it
Folate (greens, legumes), B12, B6; less coffee and alcohol.
Last reviewed: 6 September 2026
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