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.
Similar snapshots
More than 3 in 4 Americans report anxiety or depression
Mental health challenges are nearly universal — BetterHelp's own research found the majority of Americans experiencing symptoms right now.
Medicaid 5-year look-back rule
When applying for Medicaid to cover nursing home costs, there is a 5-year look-back period that can disqualify applicants who gave away or spent down assets.
Pipe broke → hydrogen sulfide studio air
A broken pipe filled the Bad Friends studio with what the hosts identified as hydrogen sulfide — microscopic fecal aeroparticles — that the crew denied smelling.
Robot surgery: 10x less blood loss
Fei-Fei Li's father's liver surgery performed by a da Vinci robot resulted in 10 times less blood loss than a typical open liver surgery, thanks to laparoscopic precision.
115M US adults have prediabetes
Approximately 115 million adults in the US currently have prediabetes, most of whom are unaware, according to the Lingo sponsor segment.
Drug overdose deaths: 110K to 80K to 70K
Drug overdose deaths in the US fell from 110,000 to 80,000 in 2024, and then to roughly 70,000 — the largest single-year drop the CDC has ever recorded.
Men's overdose rate fell 27% in one year
Men's overdose death rate fell 27% in a single year, outpacing the 23% drop for women.
Ages 15–24 overdose deaths down 37%
The steepest decline in overdose deaths was among 15–24-year-olds, whose rate fell 37%.
Nurses walk miles per shift fetching items
Fei-Fei Li observed that on a given hospital shift, nurses walk miles just to fetch medicine and supplies, illustrating a clear use case for assistive robotics in healthcare.
