David Sinclair· PhD
Ergothioneine (ET) is a sulfur-containing amino acid, discovered over 100 years ago. Humans and animals can’t make it—we rely entirely on diet to obtain it.
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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.
Ergothioneine (ET) is a sulfur-containing amino acid, discovered over 100 years ago. Humans and animals can’t make it—we rely entirely on diet to obtain it.
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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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