Andrew Huberman· PhD
acetylcarnitine is essentially what's made from L-carnitine but it's acetylated. If you're interested in the biochemistry, you can look that up, it's acetylated into a form that can cross the blood-brain barrier.
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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.
acetylcarnitine is essentially what's made from L-carnitine but it's acetylated. If you're interested in the biochemistry, you can look that up, it's acetylated into a form that can cross the blood-brain barrier.
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but L-carnitine when taken is acetylated and converted into this form that gets across the blood-brain barrier. And it has a lot of effects, it's involved in mitochondrial activation of long chain fatty acids which that's a big mouthful, that we'll get into some time when we're talking about metabolic, but it has some interesting effects on the neuro side.