Alpha-GPC: 300 mg pre-workout dose
Huberman takes 300 mg of Alpha-GPC before workouts or cognitive work sessions, 3–4 times per week, to sharpen focus through increased acetylcholine synthesis.
Snapshot · Huberman Lab
Essentials: Control Your Brain Chemistry for Focus, Motivation & Well-Being
Explore episode
Aug 6, 2026
Where this was said
Enhance Focus & Acetylcholine: Choline-Rich Foods, Nicotine
At 27:00 · chapter starts 24:56
Acetylcholine is the quiet achiever among the four neuromodulators — less discussed in pop culture than dopamine, but equally essential for the kind of sustained, productive focus that enables new learning. Huberman starts with the dietary foundation: eggs, beef, soybeans, fish, mushrooms, and kidney beans are all rich in choline, the direct precursor to acetylcholine synthesis [1] — Andrew Huberman "Acetylcholine is the neuromodulator of focus and neuroplasticity — but it has to be built from choline in the diet. Eggs, beef, soybeans, f…" 24:55 . Getting enough choline through food is the non-negotiable baseline before supplements even come into play. From there, he surveys the chemical landscape: nicotine activates nicotinic acetylcholine receptors and is genuinely effective as a cognitive enhancer, but smoking or vaping is ruled out immediately due to lung cancer and addiction risks — specifically because nicotine also hijacks dopamine circuits. Nicorette gum is used by some, but individual tolerance varies widely. Huberman's preferred protocol involves Alpha-GPC at 300 mg (which feeds the choline synthesis pathway) and Huperzine (which inhibits the enzyme that breaks acetylcholine down, leading to net accumulation) [2] — Andrew Huberman "Alpha-GPC feeds the choline synthesis pathway, directly increasing acetylcholine production. Huperzine works differently — it inhibits the …" 27:04 . He takes this combination before workouts or focused cognitive sessions, 3–4 times per week, always early in the day to protect sleep.
Alpha-GPC and Huperzine: Huberman's Acetylcholine Stack
Alpha-GPC feeds the choline synthesis pathway, directly increasing acetylcholine production. Huperzine works differently — it inhibits the enzyme that breaks acetylcholine down, leading to net accumulation. Huberman takes 300 mg Alpha-GPC 3–4 times a week before training or cognitive work, always in the morning to protect sleep.
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