Table 2 Classification and dietary sources of flavonoids

Classification Flavonoids Dietary Sources References
Flavone Apigenin Celery, parsley seed, chamomile Sung et al. (2016)
Luteolin Parsley, broccoli Justesen & Knuthsen. (2001)

Flavonol Quercetin Vegetables, kale, onions, berries Justesen & Knuthsen. (2001), Manach et al. (2004)
Kaempferol Leeks, spinach, broccoli Manach et al. (2004), Dabeek & Marra. (2019)
Rutin Citrus fruits, buckwheat, apples, cherries, red peppers Atanassova & Bagdassarian. (2009), Kreft et al. (1999)

Flavanone Naringenin Citrus fruits, grapefruits Ho et al. (2000), Vallverdú-Queralt et al. (2012)
Hesperetin Citrus fruits, oranges Manach et al. (2004), Mohammadi et al. (2019)
Eriodictyol Citrus fruits, lemons Manach et al. (2004), Miyake et al. (1997)

Flavanol Catechin Green tea, apricots, red wine Wang et al. (2000), Gharras (2009)
Epicatechin Cacao, black tea Arts et al. (2000), Manach et al. (2004)

Isoflavone Daidzein Soybeans Reinli & Block. (1996), Laurenz et al. (2017)
Genistein Soybeans Raurenz et al. (2017)

Anthocyanin Pelargonidin Blackcurrants Slimestad & Solheim. (2002)
Cyanidin Blackberries Ding et al. (2006)
Delphinidin Black grapes Farida et al. (2016)
Pheonidin Blueberries Manach et al. (2004)
Malvidin Strawberries López de Las Hazas et al. (2017)