Peter Attia· MD
the majority of that lactate is oxidized by the slow twitch muscle fibers, by the mitochondria of the slow twitch muscle fibers.
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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.
the majority of that lactate is oxidized by the slow twitch muscle fibers, by the mitochondria of the slow twitch muscle fibers.
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That is the ability that elite athletes have. They can be recruiting fast twitch muscle fibers They can be utilizing a lot of glucose and producing a lot of lactate. But since they have a very well-developed mitochondria in the slow twitch muscle fibers, they don't need to export it to the blood and it doesn't accumulate.