APOE4 and saturated fat: the ongoing debate
One of the most argued-about questions for carriers. The mechanism, what the evidence actually supports, how much is reasonable, and why measuring beats guessing.
Updated June 16, 2026 9 min
Deep Dives
Diet & Nutrition
Fats, carbs, and eating for the APOE4 brain.
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The Mediterranean and MIND diets: what the evidence shows
Two dietary patterns dominate the brain-health conversation. What the research actually supports, the specific foods and frequencies, and how to apply it as an APOE4 carrier.
Updated June 16, 2026 9 min
Omega-3s, DHA, and the APOE4 wrinkle
Omega-3 fats matter for the brain, but the evidence in APOE4 carriers has a real twist. The mechanism, the dose question, the right form, and what is still uncertain.
Updated June 16, 2026 9 min
Alcohol and the APOE4 brain
The "red wine is good for you" era is over. What current evidence says about alcohol, the brain, and the heart, the mechanisms, and how carriers might think about it.
Updated June 16, 2026 8 min
Fasting, ketosis, and APOE4: promise and open questions
Intermittent fasting and keto are popular in carrier circles. The real biology, a recent APOE4-specific catch from a fasting trial, the lipid trade-off, and how to test it safely.
Updated June 16, 2026
Ultra-processed food and the brain
The "processed" label is fuzzy, but the research on ultra-processed food and cognition is getting harder to ignore. What we know, why it likely matters, and how to eat around it.
Updated June 16, 2026 8 min
Coffee, tea, and the brain: signal vs. noise
Is your daily coffee protecting your brain or harming it? What the evidence supports, what it doesn’t, why the headlines flip-flop, and the part that actually matters: sleep.
Updated June 16, 2026 8 min
Gut health, the microbiome, and the brain: what’s real?
The "gut-brain axis" is everywhere, and so is hype. A skeptical, evidence-aware look at what the microbiome may mean for the APOE4 brain, and what to actually do.
Updated June 16, 2026 8 min
Meat, APOE4, and the Brain: What the Karolinska Study Actually Found
A Swedish cohort found higher meat intake tracked with slower cognitive decline only in APOE4 carriers. What that means, and what it doesn't.
Updated June 22, 2026
Diet, Your Metabolome, and APOE4: What the 2025 Mediterranean-Diet Study Actually Found
A 2025 Nature Medicine study found a Mediterranean diet shifts blood metabolites tied to dementia risk, even in APOE4 homozygotes. What it means for carriers.
Updated June 16, 2026