Nutrition Optimization
Macro timing, meal order hacks, supplement stacking, and metabolic flexibility for longevity.
Priority nutrition guides
The Foundation: Macros for Longevity
Your macro split matters less than protein adequacy, micronutrient density, and metabolic health. The baseline for longevity:
Protein (daily)
Calories from fat
80%+ intake
Protein
1.6–2.2 g/kg BW/dayPreserves muscle, supports autophagy, high thermic effect. Higher intakes safe long-term.
Fat
20–30% caloriesEssential for hormones, mitochondrial health, satiety. Prioritize omega-3s and MUFA.
Carbs
Flexible (20–50%)Vary by activity level. Lower carb supports metabolic flexibility; high carb supports performance.
Meal Timing: Metabolic Windows
When you eat matters nearly as much as what you eat. Timing affects circadian alignment, digestion, autophagy, and hormone patterns.
The 2-Meal Protocol (Evidence-Backed)
First meal within 1–2 hrs of wake
Resets food-timing clock, stabilizes cortisol, breaks overnight fast.
Largest meal (lunch)
Peak insulin sensitivity, best digestion window, fuel for afternoon activity.
Last caloric intake (ideally)
Allows 4–6 hr fasting window before bed for autophagy and sleep quality.
No food (or very light)
Sleeping with full stomach disrupts deep sleep; melatonin peaks on empty stomach.
Why 2 meals? Longer fasting periods trigger autophagy, improve insulin sensitivity, and simplify adherence. Most longevity experts (Huberman, Sinclair) use 2–3 meals max.
Meal Order Hack: Vegetables First
The sequence in which you eat components of a meal dramatically affects glucose response and satiety.
Vegetables & Fiber
Slows glucose absorption by 20–30%. Eat cruciferous, leafy greens, legumes first.
Protein & Fat
Slows carb digestion further. Satiety signal arrives 15 min later.
Carbs & Starches
Last component prevents blood sugar spike. Glucose peaks 30–50% lower.
Real example: Pizza (cheese + bread + vegetable toppings) → Eat toppings first, then cheese, then crust. Glucose response drops 20–30%.
Supplement Stacking: Synergies & Timing
Some supplements amplify each other; others compete for absorption. Smart stacking maximizes benefits.
Morning Glucose Control
Metabolic Flexibility
Rule: Don't stack things that compete for absorption (iron + calcium, calcium + magnesium). Take them 2+ hours apart.
Intermittent Fasting: Protocols & Trade-Offs
16:8 (Time-Restricted Eating)
Window
16 hrs fast / 8 hrs eat
Noon–8 PM eating window
Pros & Cons
✓ Easiest to sustain, good autophagy, muscle-sparing
✗ Moderate calorie restriction benefit
20:4 (Warrior Diet)
Window
20 hrs fast / 4 hrs eat
One 4-hour evening feeding window
Pros & Cons
✓ Maximal autophagy, simplicity
✗ Hard to meet protein; harder to sustain
5:2 (5 days normal, 2 days low-cal)
Window
Variable fast / 500 cal on fast days eat
Normal Mon–Fri, 500 cal Sat–Sun
Pros & Cons
✓ Sustainable, good adherence, metabolic flexibility
✗ Slower results than daily IF
Best for longevity: 16:8 with consistent meal timing (e.g., always noon–8 PM). Easier to stick with long-term than extreme protocols.
Metabolic Flexibility: The Hidden Skill
Metabolic flexibility = ability to switch between glucose and fat oxidation. It predicts longevity, insulin sensitivity, and metabolic health.
Building Metabolic Flexibility
Metric: Test fasting glucose (under 90 mg/dL = good). Use CGM if available to see your glucose response to fasting and meal combinations.
Medical Disclaimer
This is educational content. Consult a registered dietitian or doctor before major dietary changes, especially if you have diabetes, gastrointestinal issues, or take medications. Intermittent fasting is not appropriate for pregnant/nursing women, those with eating disorder history, or certain medical conditions.
Quick Reference
1.6–2.2 g/kg
2 meals, 6–8 hrs apart
16:8 or 12:12
Whole foods 80%+