DIETS & NUTRITION

7-Day High-Protein Fasting Meal Plan: 1,800 Calories/Day (160g Protein, Muscle Retention & Recomp)

📅 September 19, 2026 ⏱️ 4 min read
🩺 Medically Reviewed & Fact-Checked by FastingTracker Medical Board • Written by Aly Owen • Updated: September 19, 2026
7-Day High-Protein Fasting Meal Plan: 1,800 Calories/Day (160g Protein, Muscle Retention & Recomp)

✨ Key Takeaways

  • Learn the best practices of intermittent fasting for optimal health.
  • Understand how to track your fasting windows effectively.
  • Discover the science-backed metabolic benefits of fasting.

If you perform heavy weight training, engage in athletic sports, or want to torch belly fat without sacrificing a single gram of hard-earned muscle, this 7-Day High-Protein 1,800 Calorie Fasting Meal Plan is engineered for body recomposition. Delivering a formidable 160 grams of complete protein daily alongside 140g of complex carbohydrates and 65g of healthy fats, it provides the optimal fuel for lean muscle hypertrophy.

TL;DR

⚡ Quick Facts & AI Summary

Protocol High-Protein Fasting Plan
Calories 1,800 kcal / Day
Fasting Safe? ✅ 16:8 or 18:6 Window
Insulin Impact Optimal Post-Workout Timing
Autophagy 🧬 Preserves 100% Lean Muscle
Clinical Verdict: Hitting 160g of protein within an 8-hour fasting window triggers maximal Muscle Protein Synthesis (MPS) via the leucine threshold while keeping fat oxidation elevated throughout the 16-hour fast.
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The 1,800 Calorie High-Protein Architecture

Each day divides 1,800 calories into three distinct muscle-sparing feeding opportunities:

  • 12:30 PM — Meal 1 (Post-Fast Foundation): ~750 kcal | 65g Protein | 55g Carbs | 26g Fat
  • 04:30 PM — Midday Anabolic Bridge: ~300 kcal | 30g Protein | 25g Carbs | 8g Fat
  • 07:45 PM — Meal 2 (Evening Recovery Feast): ~750 kcal | 65g Protein | 60g Carbs | 28g Fat

7-Day Sample Meal Plan (160g Daily Protein)

Day 1: 4 pasture-raised eggs + 100g smoked salmon on sourdough [Meal 1] • 250g Greek yogurt + whey isolate + blueberries [Snack] • 250g grilled top sirloin steak + roasted sweet potatoes + steamed asparagus [Meal 2].
Day 2: 250g chicken breast breast bowl with quinoa & avocado [Meal 1] • 1 cup cottage cheese + pumpkin seeds [Snack] • 250g baked salmon fillet + brown rice + roasted zucchini [Meal 2].
Day 3: 200g lean ground turkey chili with black beans [Meal 1] • Whey protein shake with almond milk + banana [Snack] • 250g grilled chicken thighs + baked sweet potato wedges [Meal 2].
Day 4: 3-egg omelet with 150g turkey breast & baby spinach [Meal 1] • Greek yogurt bowl with chia seeds [Snack] • 250g white fish (cod) + wild rice + large olive oil garden salad [Meal 2].
Day 5: 250g grass-fed beef burger patty (bunless) with sweet potato fries & green salad [Meal 1] • 2 hard-boiled eggs + 30g almonds [Snack] • 250g roasted chicken breast + quinoa + broccoli [Meal 2].
Day 6: 2 cans tuna salad with Greek yogurt mayo, chickpeas & avocado [Meal 1] • Cottage cheese with sliced strawberries [Snack] • 250g pork tenderloin medallions + roasted potatoes + asparagus [Meal 2].
Day 7: High-protein protein pancakes (whey + oats + eggs) with berries [Meal 1] • Post-workout isolate shake with fruit [Snack] • 250g grilled steak + baked potato + roasted Brussels sprouts [Meal 2].

Stages of Fasting

0h 12h 24h 48h 72h

Fed State (0-4 Hours)

Your body is digesting food. Insulin is high, and your body is actively storing glucose as glycogen.

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Frequently Asked Questions About High-Protein Fasting

Can you absorb 60g of protein in one meal?

Yes. The myth that your body can only absorb 30g of protein per meal has been thoroughly debunked. While 30g may max out instantaneous acute Muscle Protein Synthesis, the excess amino acids are absorbed slowly over several hours, supporting connective tissue, enzyme production, and prolonged anti-catabolic protection.

Aly Owen - Nutritionist
🩺 Medically Reviewed & Fact-Checked

Aly Owen ✓ Verified

Certified Nutritionist & Intermittent Fasting Expert

Aly Owen is a certified nutritionist specializing in metabolic health, intermittent fasting protocols, and sustainable weight loss with over 8 years of clinical experience. All guidance is verified against peer-reviewed literature.

Certified Nutritionist (CN) • Metabolic Health Specialist • View Full Bio & Credentials →

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Fasting Duration: 16 Hours
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📚 Scientific Studies & Medical References (5 Sources) ▼

FastingTracker adheres to strict editorial standards, citing peer-reviewed clinical trials and authoritative medical institutions.

  1. New England Journal of Medicine (2019): de Cabo R, Mattson MP. Effects of Intermittent Fasting on Health, Aging, and Disease. N Engl J Med. 381(26):2541-2551. PubMed 31881139 • DOI
  2. Cell Metabolism (2014): Levine ME, Suarez JA, Brandhorst S, et al. Low Protein Intake and Periodic Fasting Promote Longevity and Autophagy. Cell Metab. 19(3):407-417. PubMed 24606898 • DOI
  3. Obesity (Silver Spring, 2018): Anton SD, Moehl K, Donahoo WT, et al. Flipping the Metabolic Switch: Understanding and Applying Health Benefits of Fasting. Obesity. 26(2):254-268. PubMed 29086496 • DOI
  4. Annual Review of Nutrition (2017): Patterson RE, Sears DD. Metabolic Effects of Intermittent Fasting. Annu Rev Nutr. 37:371-393. PubMed 28715993 • DOI
  5. Autophagy (2010): Alirezaei M, Kemball CC, Flynn CT, et al. Short-term fasting induces profound neuronal and systemic autophagy. Autophagy. 6(6):702-710. PubMed 20534972 • DOI
Aly Owen, MS, CNS

Aly Owen, MS, CNS

✓ Medically Reviewed & Fact-Checked
Lead Clinical Nutritionist & Fasting Specialist

Aly Owen, MS, CNS, specializes in metabolic health, circadian fasting schedules, and nutritional biochemistry with over 8 years of clinical experience. She directs FastingTracker’s medical review board and scientific fact-checking.

⚠️ Medical Disclaimer: This article is for informational and educational purposes only and does not substitute professional medical diagnosis, advice, or treatment. Consult a physician before undertaking significant fasting.
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