
Fast This Way
by Dave Asprey
The Bulletproof founder on intermittent fasting, including his butter-coffee variant, with claims about ketosis, autophagy and mental clarity. Some of the fasting basics are reasonable; the brand-linked claims and the supplements are not well supported. Read skeptically and check with a physician.
Read it if…
you want a fasting book written in a biohacker's voice.
Skip it if…
you want evidence-based guidance without product tie-ins.
Three things you will actually use
- Fasting windows are the one broadly supported idea here.
- Hunger is often habit, not need.
- Separate the method from the merchandise.
Do this first
If you fast, start with a twelve-hour window and ignore the products.
Our verdict
Skeptical read recommended.
Compare with other Health books

It Starts with Food
Dallas Hartwig and Melissa Hartwig · Health
The rationale, somewhat overstated.
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