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    "url": "https://www.kolczanksiazek.pl"
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  "formats": "Każda podstrona ma dwie wersje z tymi samymi danymi: JSON (adres strony + .json) i markdown (adres strony + .md). Do każdego `url` w tym dokumencie można dopisać .json albo .md.",
  "title": "Keto dla zdrowia i długowieczności",
  "subtitle": null,
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  "url": "https://www.kolczanksiazek.pl/ivor-cummins/keto-dla-zdrowia-i-dlugowiecznosci",
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  "markdown": "https://www.kolczanksiazek.pl/ivor-cummins/keto-dla-zdrowia-i-dlugowiecznosci.md",
  "authors": [
    {
      "name": "Ivor Cummins",
      "slug": "ivor-cummins",
      "url": "https://www.kolczanksiazek.pl/ivor-cummins"
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    {
      "name": "Ryan Turner",
      "slug": "ryan-turner",
      "url": "https://www.kolczanksiazek.pl/ryan-turner"
    },
    {
      "name": "Jeffry Gerber",
      "slug": "jeffry-gerber",
      "url": "https://www.kolczanksiazek.pl/jeffry-gerber"
    },
    {
      "name": "Jeffry N. Gerber",
      "slug": "jeffry-n-gerber",
      "url": "https://www.kolczanksiazek.pl/jeffry-n-gerber"
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  "language": "pl_PL",
  "original_title": null,
  "original_language": null,
  "first_published": "2022-01-01",
  "genres": [],
  "series": [],
  "cover": "https://quivercdn.com/covers/vital/ivor-cummins/keto-dla-zdrowia-i-dlugowiecznosci_978-83-8272-246-8.webp?v=2026-08-18%2004%3A10%3A10",
  "description": "Dzięki temu poradnikowi, prezentującemu wyniki najnowszych badań naukowych, poznasz fakty i mity o cukrze, olejach rafinowanych, tłuszczach i cholesterolu. Dowiesz się, jak szybko schudnąć, pokonać cukrzycę, insulinooporność i choroby serca. Zastosujesz 21-dniowy plan żywieniowy oparty na zasadach...",
  "editions": [
    {
      "title": "Keto dla zdrowia i długowieczności",
      "subtitle": null,
      "url": "https://www.kolczanksiazek.pl/ivor-cummins/keto-dla-zdrowia-i-dlugowiecznosci/9788382722468",
      "publisher": "Vital",
      "publisher_series": [],
      "translators": [],
      "medium": "paper",
      "duration_seconds": null,
      "narrators": [],
      "illustrators": [],
      "cover_artists": [],
      "isbn": "978-83-8272-246-8",
      "pages": 480,
      "published": "2022-01-01",
      "language": "pl_PL",
      "cover": "https://quivercdn.com/covers/vital/ivor-cummins/keto-dla-zdrowia-i-dlugowiecznosci_978-83-8272-246-8.webp?v=2026-08-18%2004%3A10%3A10"
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  "chapters": []
}