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This review highlights the need for more precise terminology regarding DF and BCs, as inconsistent use of these terms can create confusion among both consumers and researchers. The DF complex encompasses all non-digestible food components that have a positive effect on human health, together with the BCs associated with them, recognising that DF often serves as a carrier for these compounds throughout the digestive tract. Although recommended intakes for BCs have not been established, intake levels observed in populations adhering to healthy dietary patterns may serve as useful reference points. Updated data on the intake and estimated intestinal bioaccessibility of polyphenolic compounds in the contemporary Spanish diet are presented.<\/jats:p>","DOI":"10.3390\/nu18121957","type":"journal-article","created":{"date-parts":[[2026,6,17]],"date-time":"2026-06-17T15:11:22Z","timestamp":1781709082000},"page":"1957","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Plant Foods as Healthy Sources of Dietary Fibre, Microbiota Modulation and Bioactive Compounds: Beyond Definitions\u2014A Review"],"prefix":"10.3390","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4184-3971","authenticated-orcid":false,"given":"Isabel","family":"Go\u00f1i","sequence":"first","affiliation":[{"name":"Department of Nutrition and Food Science, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ram\u00f3n y Cajal s\/n, Ciudad Universitaria, 28040 Madrid, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0238-2220","authenticated-orcid":false,"given":"Araceli","family":"Redondo-Cuenca","sequence":"additional","affiliation":[{"name":"Department of Nutrition and Food Science, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ram\u00f3n y Cajal s\/n, Ciudad Universitaria, 28040 Madrid, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,6,17]]},"reference":[{"key":"ref_1","unstructured":"(2025, May 07). 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