What to watch with ApoB and Langlebigkeit?

ApoB (apolipoprotein B) is a core component of LDL particles and a strong predictor of cardiovascular risk – and thus longevity. Elevated ApoB levels are causally linked to atherosclerosis and premature mortality. For longevity, monitoring ApoB via a blood test (not a DNA test) is recommended, as it directly quantifies atherogenic particle number. While consumer DNA tests can report variants in genes like APOB, PCSK9, or LDLR that influence ApoB levels, the effect sizes are small and lifestyle-dependent. The evidence for ApoB as a biomarker is strong (human-strong), but the clinical utility of genetic testing for actionable dietary or lifestyle changes remains limited. Optimal ApoB levels for longevity are < 100 mg/dL (or < 70 mg/dL for high-risk individuals), achievable through diet, exercise, and medication if needed. Home tests may offer screening, but they do not replace professional medical assessment.