🧬 Longevity
The longest-lived populations on Earth — the Blue Zones of Okinawa, Sardinia, Nicoya, Ikaria, and Loma Linda — share striking dietary similarities. Research on caloric restriction, plant-rich diets, and specific nutrients reveals that what you eat profoundly influences not just lifespan, but healthspan — the number of years lived in good health.
Anti-Aging Nutrients
Polyphenols (berries, green tea, dark chocolate, olive oil) reduce oxidative stress. Omega-3 fatty acids protect telomere length. Vitamin D supports immune function and reduces chronic disease risk. Spermidine (wheat germ, soybeans, aged cheese) promotes autophagy — cellular cleanup. NAD+ precursors (niacin, tryptophan) support cellular energy production.
Caloric Restriction and Fasting
Caloric restriction (reducing intake by 15-25% without malnutrition) is the most consistently proven intervention for extending lifespan in animal models. In humans, intermittent fasting may provide similar benefits by triggering autophagy — the cellular recycling process that removes damaged proteins. Time-restricted eating (12-16 hour overnight fast) is the most sustainable approach for most people.
Frequently Asked Questions
- What diet do the longest-lived people eat?
- Blue Zones populations eat predominantly plant-based diets rich in legumes, whole grains, vegetables, and nuts. They consume meat sparingly (5x/month), drink moderate wine, and practice natural caloric restriction.
- Does intermittent fasting extend lifespan?
- Animal studies strongly support fasting for longevity. Human evidence is promising but less conclusive. The benefits likely come from autophagy (cellular cleanup), reduced inflammation, and improved metabolic markers.