Caffeine, Tolerance, and Getting Your Pre-Workout to Work Again with Dr. Eric Trexler
RP Strength Podcast · Dr. Mike Israetel, Nick Shaw
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Show Notes
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Dr. Eric Trexler's Links:
- RP article: Caffeine, The Double-Edged Sword
- Stronger by Science: The Lifter's Guide to Caffeine
- Instagram: @trexlerfitness
- ResearchGate: Eric Trexler publications
- Twitter/X: @EricTrexler
Timestamps:
00:00 Eric and Nick's BEEF 🥩
06:53 Caffeine's prevalence in fitness
09:10 Eric's caffeine research background
11:04 Daily caffeine intake (1g/day of caffiene safe?)
17:30 Effective dosing by bodyweight and when high doses backfire
22:30 Tolerance and habituation: why your caffeine stops working
30:15 Caffeine withdrawal: symptoms, timeline, and how bad it actually gets
41:30 Caffeine sensitivity and genetics
44:00 Practical upper limits and sleep tradeoffs
48:00 Strategic caffeine use, deloads, and re-sensitizing
50:15 Different delivery forms: drinks, food, pills, and gum
53:45 Does caffeine Dehydrate you? Wrap-up and where to read more