Longevity diets, fact-checked
Diet is where longevity claims get loudest and least consistent. We checked the big ones, the Mediterranean pattern, keto, carnivore, intermittent fasting, the seed-oil and alcohol debates, artificial sweeteners and high-protein eating. Unusually for this site, one comes out clearly ahead.
The Mediterranean diet is the rare Supported verdict, with real randomized-trial evidence for lower cardiovascular risk. Most others are Mixed (real short-term metabolic effects, unproven longevity) or correct a popular myth in one direction or the other: the alcohol J-curve is debunked, and the sweeteners-as-poison panic is overstated. Each linked check shows where the science actually lands, not where the tribe wants it to.
People also ask
- What is the most evidence-based diet for longevity?
- The Mediterranean pattern. It has randomized-trial support for reducing cardiovascular events, which is why it is the rare Supported verdict here. Most other diets show metabolic effects but no proven lifespan benefit.
- Is moderate drinking good for longevity?
- No. The old J-curve suggesting light drinkers live longer is mostly a study-design artifact. Corrected analyses and genetic studies show alcohol's harm is roughly linear, with no safe level for overall health.
Caveat is journalism, not medical advice. We check public claims against published evidence; we don’t diagnose, treat, or tell you what to take.