Moderate-HighGBS: 81 (High Risk)fasting

Water Fasting (Longo, Fung)

Developer: Jason Fung, Valter Longo

1-21 days per fast, may repeat monthly or quarterly

Protocol Overview

Extended water-only fasting (1-7+ days) to induce autophagy, reduce insulin, trigger stem cell regeneration. Longo's research shows immune system regeneration. Fung uses for diabetes reversal.

Conditions Treated

Obesity

type 2 diabetes

cancer adjunct

longevity

autophagy

Protocol Steps

Preparation: Week before reduce processed foods, carbs, alcohol

Day before: Light eating, stop eating by evening

Fast: Water only (black coffee, tea, mineral water allowed by some), zero calories

Electrolytes: Take sodium (salt), potassium (salt substitute), magnesium supplements during extended fasts (3+ days)

Medications: Adjust with doctor (diabetes meds especially dangerous while fasting)

Physical activity: Light walking okay, avoid intense exercise

Duration: Beginners 24-48 hours, intermediate 3-5 days, extended 7-21 days (medical supervision beyond 5)

Autophagy peaks: Day 3-5 for maximum cellular cleanup

Refeeding: Critical - break fast gently with small portions of easily digestible foods (broth, light salad), avoid binging

First meal: <500 calories, low carb, gradual food increase over 1-3 days

Monitoring: Blood glucose, ketones, blood pressure, heart rate, medical supervision for >5 days

Key Resources

The Complete Guide to Fasting by Dr. Jason Fung, "The Longevity Diet" by Valter Longo, True North Health Center

Contraindications & Risks

Eating disorders, underweight, pregnancy/nursing, type 1 diabetes, certain medications, electrolyte imbalances, refeeding syndrome (extended fasts)

Important Notes

Strong scientific backing - autophagy research (Nobel Prize 2016), Longo's longevity research, Fung's clinical success with diabetes. Ancient practice now clinically studied. Extended fasts (>5 days) need medical supervision. Refeeding syndrome is real risk. Counter-intuitive but powerful. Not starvation - therapeutic fasting with intention and safety.

Also Effective For

Obesity / Weight Loss Resistance Type 2 Diabetes Reversal Cancer (Integrative Support)

Critical Safety Warning

This protocol is documented for educational purposes only. The Gabriel Bullshit Score (GBS) of 81 reflects significant institutional response and controversy. Some alternative health protocols have resulted in serious harm or death.

Always consult with qualified healthcare professionals before beginning any treatment. Do not delay or forego proven medical care.

Quick Overview

Evidence LevelModerate-High

GBS Score81 / 100

Categoryfasting

DeveloperJason Fung, Valter Longo

Duration1-21 days per fast, may repeat monthly or quarterly

About GBS Score

The Gabriel Bullshit Score reflects the magnitude of institutional response, controversy, and documented concerns. Higher scores indicate greater institutional pushback, not necessarily inefficacy. This is a research tool, not medical advice.