Andrew Huberman· PhD
I take 300mg Alpha GPC, 500mg L-Tyrosine and a strong cup of espresso 15min before about 1/3 of my morning weight workouts.
The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
I take 300mg Alpha GPC, 500mg L-Tyrosine and a strong cup of espresso 15min before about 1/3 of my morning weight workouts.
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Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
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I will take 500 milligrams of L-tyrosine, 300 milligrams of Alpha-GPC and a cup of coffee. I'm careful to do this early in the day, certainly not after two or 3:00 PM because I don't want to diminish my ability to fall and stay asleep that night. I'll do this early in the day before a workout or before a about of concentrated mental work. Again, I tend to do this about four days per week, so certainly not every time I sit down to do work.