Key Takeaway
APOE4 carriers benefit more from statins than non-carriers, with Mendelian randomization showing 70% dementia reduction. Dr. Fraser recommends genotype-specific ApoB targets — as low as the teens for 4/4 carriers with high Lp(a) and vascular disease — rather than standard LDL-C panels.
Definition
A protein on every atherogenic lipoprotein particle, serving as a direct count of particles driving cardiovascular disease.
Definition
A research method using natural genetic variants as proxies for exposures to establish causal relationships without confounding.
ApoB Targets by APOE Genotype
| Genotype | ApoB Target | Adjustment |
|---|---|---|
| APOE 3/3 | ~70 mg/dL | Baseline |
| APOE 3/4 | ~60 mg/dL | -10 |
| APOE 4/4 | ~55 mg/dL | -15 |
| 4/4 + Lp(a)+ | ~35 mg/dL | -35 |
| 4/4 + Lp(a)+ + vasc | ~15 mg/dL | -55 |

Evidence-Based Content
Reviewed by Dr. Kevin Tran, PharmD · Based on peer-reviewed research · Updated
Key Takeaway
Dr. Grant Fraser shares his exact ApoB targets, statin protocol, and diet recommendations for APOE4 carriers. Specific numbers by genotype and disease status.
Dr. Kevin Tran
PharmDDr. Kevin Tran is a Doctor of Pharmacy and APOE4/4 carrier dedicated to helping others with the APOE4 gene variant take proactive steps for their health. He founded The Phoenix Community to provide evidence-based resources and support for APOE4 carriers.
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