| Phytochemicals found in hawthorn include tannins, flavonoids, oligomeric proanthocyanidins, and phenolic acids. |
| Polyphenols include catechins, epicatechins and proanthocyanidins. |
| The effects of proanthocyanidins from Calliandra calothyrsus and the alkaloid sparteine on in vitro fiber digestion. |
| Other nutrients important for gum health include vitamin A, zinc, vitamin E, selenium, and flavonoids such as quercetin, catechin, anthocyanidins and proanthocyanidins. |
| The juice from mountain cranberries is recognized as having the highest content of natural proanthocyanidins. |
| It contains a number of active constituents including flavonoids, catechins, triterpene saponins, amines, and oligomeric proanthocyanidins. |
