Kay C.D., Mazza G.J., Holub B.J. (2005) Anthocyanins exist in the circulation primarily as metabolites in adult men. J Nutr 135:2582-8 PubMed (16251615)

Compound Mean content
Cyanidin 3-O-galactoside 491 mg/7.1 g
Cyanidin 3-O-arabinoside 175.3 mg/7.1 g
Cyanidin 3-O-xyloside 27.8 mg/7.1 g