Catechin
Catechin is a flavan-3-ol, a type of natural phenol and antioxidant. It is a plant secondary metabolite. It belongs to the group of flavan-3-ols (or simply flavanols), part of the chemical family of flavonoids. (+)-Catechin and (-)-epicatechin as well as their gallic acid conjugates are ubiquitous constituents of vascular plants, and frequent components of traditional herbal remedies, such as the Chinese medicine plant Uncaria rhynchophylla. The two isomers are mostly found as cacao and green tea constituents. Catechins are diverse among foods, from peaches to green tea and vinegar.
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