🧬 Fasting Research Project

Comprehensive Scientific Analysis: Intermittent Fasting, GLP-1 Drugs & Expert Opinions

📅 Compiled: February 23, 2026 | 🏥 Sources: PubMed, PMC, ClinicalTrials.gov

📋 Intermittent Fasting Protocols

16:8 Time-Restricted Eating Most Popular

  • Schedule: 16h fast, 8h eating window
  • Example: 12 PM - 8 PM eating
  • Evidence: Strong (20 studies, 1,288 participants)

OMAD (One Meal A Day)

  • Schedule: 23h fast, 1h eating
  • Benefits: Maximum simplicity, deep autophagy
  • Evidence: Limited

🔬 Clinical Evidence Summary

📊 PMC8839325: Intermittent Fasting and Metabolic Health

Source: https://pmc.ncbi.nlm.nih.gov/articles/PMC8839325/ | 66 articles reviewed

Key Finding: IF induces metabolism of fatty acids to ketones, leading to weight decrease and improvements in dyslipidemia and blood pressure.

📈 Meta-Analysis Results (27 Studies)

  • Weight loss range: 0.8% - 13% body weight
  • Waist circumference: 3-8 cm decrease

👨‍⚕️ Expert Opinions

Dr. Jason Fung - "The Obesity Code"

Core Theory: Insulin resistance is the root cause of obesity, not calories.

"The fastest way to dramatically lower your insulin levels is to simply stop eating."

⚖️ 6 Small Meals vs Intermittent Fasting

📊 Head-to-Head Clinical Trial: PMC12310433

Source: https://pmc.ncbi.nlm.nih.gov/articles/PMC12310433/

Study Design: 174 participants, 8 weeks, 25% calorie restriction in both groups

MetricTRE (16:8)6 Meals/DayWinner
Weight Loss1.17 kg MOREBaseline✓ TRE
LDL ReductionImprovedSUPERIOR✓ 6 Meals

💉 GLP-1 Agonists: Ozempic, Mounjaro, Wegovy

DrugGenericTypeAvg Weight Loss
OzempicSemaglutideGLP-1 agonist15% body weight
MounjaroTirzepatideDual GIP/GLP-120%+ body weight

⚠️ Can You Combine Fasting + GLP-1?

Current Recommendation: NOT without medical supervision

  • Increased side effects: nausea, bloating, circulatory issues
  • Risk of insufficient nutrient intake

🔬 Active Clinical Trial: NCT07202247

Comparing TRE vs GLP-1 drugs vs combination approach

📊 Summary Comparison

ApproachWeight LossCostSustainability
TRE (16:8)Moderate (5-8%)FREEHigh
6 Meals/DayModerate (4-6%)FREELow-Medium
GLP-1 DrugsHigh (15-20%)$$$ ($1000+/mo)Medium