Figure 1

![Figure 1: Chemical structures of major flavonoid subclasses are depicted, showing the basic 15-carbon skeleton with two benzene rings linked by a pyran ring, and structural variations between flavonols, flavones, isoflavones, and other subgroups.]()

> Source: Monika Martiniakova et al. "Protective Role of Dietary Polyphenols in the Management and Treatment of Type 2." *Nutrients*, 2025. PMID: [39861406](https://pubmed.ncbi.nlm.nih.gov/39861406/)

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  <img src="" alt="Chemical structures of major flavonoid subclasses are depicted, showing the basic 15-carbon skeleton with two benzene rings linked by a pyran ring, and structural variations between flavonols, flavones, isoflavones, and other subgroups." />
  <figcaption>Figure 1. Chemical structures of major flavonoid subclasses are depicted, showing the basic 15-carbon skeleton with two benzene rings linked by a pyran ring, and structural variations between flavonols, flavones, isoflavones, and other subgroups.<br>  Source: Monika Martiniakova et al. "Protective Role of Dietary Polyphenols in the Management and Treatment of Type 2." <em>Nutrients</em>, 2025. PMID: <a href="https://pubmed.ncbi.nlm.nih.gov/39861406/">39861406</a></figcaption>
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