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  "path": "/howto/guide/rhiannon-lambert-on-the-fibre-crisis-ultra-processed-foods-and-supplements",
  "publishedAt": "2026-03-17T10:24:21.000Z",
  "site": "https://www.bbcgoodfood.com",
  "tags": [
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    "food podcast",
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  "textContent": "## The Good Food podcast\n\nRegistered nutritionist and best-selling author Rhiannon Lambert joins host of the Good Food podcast, Samuel Goldsmith, to tackle one of the most overlooked nutrients in our diets: fibre.\n\nIn this episode, Rhiannon explains why the UK is facing a fibre crisis, how ultra-processed foods have reshaped the way we eat, and what the latest science says about gut health, longevity and disease prevention. She also shares her simple 30/30/30 formula for getting more fibre without overhauling your life, plus the truth about supplements, sugar swaps and nutrition myths that won't go away.\n\nView oEmbed on the source website\n\n**Listen to morepodcast episodes, including our Cook Smart podcast and Tom Kerridge podcast.**",
  "title": "Rhiannon Lambert on the fibre crisis, ultra-processed foods and supplements"
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