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General description	Group of phenol compounds plant origin with antioxidant effect.
Found	- pith and pulp citrus fruit - apricots - rose hips, cherries, papayas - tomatoes, broccoli, dark pigmented vegetables - soy - green tea - chocolate
Anti-aging role	- protect vitamin C from oxidation - increase absorption of vitamin A - keep good health of cardiovascular system - prevent type 2 diabetes - prevent cancer - chelate heavy metals that induce free radical production - regulate genetic activity - improves cognitive functions - anti inflammatory effect
Deficiency symptoms	- edema or acumulation of fluid - bleeding into the tissue
Therapeutic doses	500 - 2000 mg RDA not established
Maximum safe level	Not established
Interactions	- may interfere absorption of most medicines - flavonoides inhibit absorption of non-heme iron
High risk groups	- usually as bioflavonoids compound, with other antioxidants or in combination with vitamin C
Other remarks	- OPCs - Oligomere proanthocyanides

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