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The Rich Roll Podcast

Fasting Compilation: Leading Experts On Water-Only Fasts, Fasting Mimicking Diets & The Optimal Fasting Window For Longevity

68 min episode · 2 min read
·
Fasting Compilation

Episode

68 min

Read time

2 min

Topics

Health & Wellness, Leadership, Science & Discovery

AI-Generated Summary

Key Takeaways

  • Daily Fasting Window: Twelve hours of fasting and twelve hours of eating emerges as the safest, most sustainable protocol supported by centenarian populations and clinical trials, avoiding potential negative effects seen with sixteen-hour fasting windows that skip breakfast and correlate with increased mortality.
  • Visceral Fat Mobilization: Water-only fasting preferentially targets visceral fat at three times the rate of subcutaneous fat. A typical male fasting two weeks loses 20% total body fat but 55% of dangerous visceral fat surrounding organs, which produces inflammatory compounds linked to diabetes and heart disease.
  • Meal Timing Impact: Eating the same 2000 calories as one meal produces different outcomes based on timing. Army studies show evening consumption causes weight gain while breakfast consumption produces weight loss, demonstrating chronobiology's powerful effect on metabolism independent of caloric intake.
  • Fasting Mimicking Protocol: Five-day cycles of plant-based, low-calorie, low-protein, high-fat eating three to four times yearly produces long-term insulin sensitization and keeps IGF-1 levels lowered for months afterward, switching the body into maintenance mode without requiring complete food abstinence.
  • Medication Withdrawal: Most medications treat dietary choices rather than underlying disease. Patients on five blood pressure medications often achieve 120 over 70 readings without drugs after medically supervised fasting combined with whole plant food diets, as the inflammatory cause gets addressed rather than symptoms managed.

What It Covers

Leading experts including Dr. Alan Goldhamer, Dr. Valter Longo, and Dr. Michael Greger examine water-only fasting, fasting mimicking diets, and time-restricted eating protocols, exploring their effects on chronic disease reversal, longevity, and metabolic health.

Key Questions Answered

  • Daily Fasting Window: Twelve hours of fasting and twelve hours of eating emerges as the safest, most sustainable protocol supported by centenarian populations and clinical trials, avoiding potential negative effects seen with sixteen-hour fasting windows that skip breakfast and correlate with increased mortality.
  • Visceral Fat Mobilization: Water-only fasting preferentially targets visceral fat at three times the rate of subcutaneous fat. A typical male fasting two weeks loses 20% total body fat but 55% of dangerous visceral fat surrounding organs, which produces inflammatory compounds linked to diabetes and heart disease.
  • Meal Timing Impact: Eating the same 2000 calories as one meal produces different outcomes based on timing. Army studies show evening consumption causes weight gain while breakfast consumption produces weight loss, demonstrating chronobiology's powerful effect on metabolism independent of caloric intake.
  • Fasting Mimicking Protocol: Five-day cycles of plant-based, low-calorie, low-protein, high-fat eating three to four times yearly produces long-term insulin sensitization and keeps IGF-1 levels lowered for months afterward, switching the body into maintenance mode without requiring complete food abstinence.
  • Medication Withdrawal: Most medications treat dietary choices rather than underlying disease. Patients on five blood pressure medications often achieve 120 over 70 readings without drugs after medically supervised fasting combined with whole plant food diets, as the inflammatory cause gets addressed rather than symptoms managed.

Notable Moment

Dr. Goldhamer reveals that when patients lose 10% body weight through fasting, they regain water, fiber, glycogen, and protein during refeeding on whole plant foods, but zero fat returns. The weight comes back without fat accumulation, contradicting common beliefs about post-fast weight regain.

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Episode Transcript

Eat for eleven hours or twelve and fast for thirteen hours or twelve. The fact is it can be done safely. It can be done effectively. And when it's needed, there's nothing else that does exactly what water only fasting does. Some studies show it's great for you. Other studies show it's terrible for you. It has all these negative metabolic consequences. People are oftentimes medicated for their diet. And then after we're done, most of the time, there's no need for medication. Intermittent fasting, water only fasting, you know, five two, twenty five five, time restricted feeding. What is going on here? Fasting has become quite the popular thing lately, but what is fasting? It can mean many different things. There's intermittent fasting. There is time restricted eating. There is alternate day fasting, twice weekly fasting. There's the fasting mimicking diet, minimally supplemented fasting. So what is fasting? What are we talking about when we're discussing this topic? We're gonna get right into it in a sec, but first Today's episode is brought to you by ROKA. You know what's funny? We don't often think of eyewear as performance gear until it starts to get in the way. And if you're like me, somebody who has contended with eyesight impairment my entire life, it's a very real thing without a real solution for athletes. I cannot tell you how many times I've been mid run constantly shoving my glasses back up my nose, tripping on roots and rocks because I couldn't see them, or my glasses had fogged up. Or what about out on the bike where the treachery is obviously far more intense. Well, this is why ROKA has been a godsend for me. Approaching prescription eyewear from a performance perspective first, but not at the cost of fashion, I should say. Helping not only people like me, but all kinds of athletes, including Tour de France cyclists and Ironman champions with everyday frames, discipline. Their secret is their proprietary gecko technology, patented nose and temple pads that grip even more securely when you sweat. No slipping, no distractions, and they're insanely lightweight. Most frames weigh less than a pencil, super light, even with prescription lenses. Beyond the function, the craftsmanship is next level. Razor sharp optics, durable construction, and a design that actually is beautiful and keeps up with you. So put them on, feel the difference, and wear without limits. Unlock 20% off your order with code richroll at roka.com. That's roka.com. I got news for you. The holidays are coming, and with them, all these questions kind of start swirling in our minds about what we're gonna give people that we care about. And, honestly, it's really hard because most gifts just end up forgotten somewhere. But the gifts that actually do get used are the ones that make someone wanna use them, and On does exactly that with their incredible line of high quality running and hiking gear. Shoes like the Cloud Ultra for …

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