CIRCADIAN CHRONO-NUTRITION
Intermittent Fasting & Macro Window Solver
Compressing your macros into a 6 or 8-hour feeding window requires surgical nutrient density. Calculate your 40/60 asymmetric meal allocation to prevent midday brain fog and hit your protein floor without stomach bloat.
Fasting Protocol Setup
Fast-Breaker (First Meal)12:00 PM
10:00 AM12:00 PM2:00 PM4:00 PM
Daily Calorie Target1,800 kcal
Daily Protein Floor130g
CIRCADIAN FASTING MATRIX
Your Feeding & Fasting Schedule
⚡ Fasting Duration:16 Hours Fasted
🍽️ Feeding Window:12:00 PM – 8:00 PM (8h)
🌙 Autophagy Window:Deep Fasting from Hour 12+
Asymmetric Meal Distribution (40/60 Split)
Meal 1: Fast-Breaker (12:00 PM)40% Target
52g Protein · 55g Fat · <5g Net Carbs · (720 kcal)
Light, moderate-fat protein anchor. Prevents reactive hypoglycemia and eliminates postprandial 2 PM somnolence.
Meal 2: Dinner Anchor (8:00 PM)60% Target
78g Protein · 82g Fat · <8g Net Carbs · (1080 kcal)
Substantial caloric and mineral anchor. Reaches leucine threshold, promotes deep sleep, and maintains satiety throughout the night.
ZERO-INSULIN FASTING PROTOCOL
What Can You Drink During Fasting Hours?
- ✓ Water & Sparkling Mineral Water: Unlimited. Essential for blood volume.
- ✓ Black Coffee & Plain Green Tea: Enhances hepatic autophagy and AMPK.
- ✓ Pure Unrefined Salt & Electrolytes: Take 500mg sodium in water at 9:00 AM to blunt morning lightheadedness.
- ⚠️ Bone Broth & Heavy Cream: Contains amino acids and fats that trigger mTOR and halt autophagy. Save for feeding window.
ON-DEVICE FASTING INTEGRATION
Sync your keto meal plans with your fasting timer.
Repast automatically models 16:8 or 18:6 meal compression, allocating dense protein into two verified meals on your iPhone.
Plan Fasting Keto on iPhone