Summary of 72 Hour Water Only Fast: Is It Healthy? | Dr. Steven Gundry

Key Points on 72-Hour Water Fasting:

Metabolic Flexibility:
- Approximately 50% of normal-weight individuals, 92% of overweight individuals, and 98% of obese individuals are metabolically inflexible.
- Metabolically inflexible individuals struggle to switch from burning glucose to burning fat for energy, leading to fatigue and poor performance during a fast.
Energy Depletion:
- Glucose supplies are exhausted within 8-12 hours, and glycogen stores within 24 hours.
- High insulin levels prevent the release of free fatty acids from fat cells, leading to feelings of hunger and low energy.
Detoxification Risks:
- Fasting can release heavy metals stored in fat cells into the bloodstream, which may lead to increased toxicity rather than detoxification.
- The liver, which is responsible for detoxification, may lack the necessary fuel during fasting, complicating the detox process.
Muscle Loss:
- During fasting, the body may resort to gluconeogenesis, which can result in Muscle Loss, contrary to health goals.

Time-Restricted Eating:
- Dr. Gundry advocates for a Time-Restricted Eating approach, compressing the eating window to 6-8 hours a day.
- Gradually push breakfast later (e.g., from 7 AM to 8 AM, then to 9 AM) to help the body produce ketones, which can enhance mitochondrial function and promote weight loss without sacrificing muscle mass.
Benefits of Time-Restricted Eating:
- Studies indicate that athletes who eat within a 7-hour window maintain muscle mass and lower insulin-like growth factor levels compared to those eating in a 12-hour window.

Start by delaying breakfast by one hour each week until reaching a preferred eating window.
Avoid 72-hour water fasts to maintain energy levels, muscle mass, and overall health.

— 03:07 — « 50% of us plain old normal weight people can't make that switch. »

— 07:19 — « The downside is that you lose huge amounts of muscle mass and again that's the last thing you want to do for health. »

— 08:12 — « You actually do a caloric bypass on your mitochondria so they literally waste fuel, waste fat. »

— 09:10 — « Pay attention you folks who are injecting your stomach every week. »

— 10:09 — « These are literally like swallowing razor blades which will damage the wall of your gut. »