**5. Role of flavonoids in diabetes mellitus**

The presence of polyphenolic compounds such as flavonoids, phenols, flavonols, and proan‐ thocyanidins in plants is associated with the antioxidant and antidiabetic potentials [61]. A number of studies have reported on the beneficial effect of flavonoids in diabetes mellitus [62-63]. Examples of flavonoids include quercetin, rutin, diosmin, luteolin, lycopene, catechins and cinnamic acids.
