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  "path": "/article/the-science-behind-the-peptide-craze/",
  "publishedAt": "2026-04-18T12:00:00.000Z",
  "site": "https://www.scientificamerican.com",
  "textContent": "The world of peptides has exploded in wellness circles, but the benefits of injecting these gray-market molecules rest on little clinical evidence",
  "title": "The science behind the peptide craze"
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