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Fasting vs. Eating Less: What's the Difference? (Science of Fasting)

Joseph Everett - WIL · explainer · Watch on YouTube

Nutrition & diet scienceFitness, sleep & longevity

What it is

A short explainer on the physiological differences between fasting and simply eating less. It covers ketosis, ghrelin and hunger waves, and the hormonal effects of fasting.

Why Hacker News recommends it

Shared as an accessible, convincing case for intermittent fasting and its physiology.

  • 5 people recommended it
  • 5 different months
  • 1 strong recommendations
  • first 2017, last 2021

What HN commenters said

  1. “provide some compelling arguments for switching to intermittent fasting for many major systemic health benefits”

    Compelling arguments for fasting versus eating less

    iglookid, 2018-05 · Strong recommendation · in “Things no one tells you before an Antarctic expedition (2015)”

  2. “it's good to hear many of the points it raised validated by your experience”

    Explains fasting science including ghrelin and hunger waves

    vijucat, 2017-07 · Recommendation · in “Can a Diet That Mimics Fasting Turn Back the Clock?”

  3. “I seriously hope this video can lead you to a better lifestyle.”

    Video making the case that fasting works

    donpapa, 2018-08 · Recommendation · in “Ask HN: What do you struggle with?”

  4. “here's some material I went over to educate myself and convinced me that it's perfectly safe”

    Educational material convincing fasting is safe

    ravenstine, 2020-02 · Recommendation · in “Ask HN: What Skills to Acquire in 2020?”

  5. “What really opened me up to all of the complex biochem when processing different foods”

    Channel explaining the biochemistry of processing different foods

    seer, 2021-08 · Recommendation · in “What happens to your brain when you give up sugar”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: fasting, ketosis, ghrelin, intermittent fasting, metabolism

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