flavanoleihin
Flavanols are a subgroup of flavonoids, specifically flavan-3-ols, found in a wide range of plant foods and beverages. The most studied monomeric units are catechin and epicatechin, and these can polymerize to form proanthocyanidins (also called condensed tannins). Flavanols vary in their hydroxylation pattern and degree of polymerization, which influence their bioavailability and biological activity.
Dietary sources are diverse. Cocoa and dark chocolate are particularly rich in flavanols, as are tea (especially
Evidence on health effects is mixed but generally suggests potential cardiovascular benefits. Observational studies associate higher