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Book$$$Cheap: Roughly under $50, or under $15/month.

Fast This Way

Dave Asprey on intermittent and extended fasting, and how to make it less miserable

Dave Asprey's 2021 book on fasting, sold under the line that you should break the rules, not the fast. It covers intermittent windows and longer fasts alongside the fat-assisted version he has pushed since The Bulletproof Diet, where a butter and MCT coffee stands in for breakfast. His site runs a companion fasting challenge that it says more than 60,000 people have completed.

Who backs it

Sorted by strength of stance

  • Dave AspreyRecommends

    Biohacker · Bulletproof Coffee

    His fasting book, pitched as breaking the rules rather than the fast. His site says he was fasting years before it was fashionable and that anyone drinking his coffee for breakfast has been doing a version of it already.

    Source: Dave Asprey: Fast This Way Challenge

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Book entry · notes paraphrased from cited sources, quoted excerpts copied from the transcript they link to. Not medical advice. Not affiliated with, endorsed by, or reviewed by anyone listed. How this works.