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Citrus
Bioflavonoids
(Hesperidin; Naringin; Quercitrin; Rutin)
DESCRIPTION/FUNCTION
- There are several thousand kinds of bioflavonoids found throughout the plant
kingdom. They are part of the polyphenol family. Citrus fruits contain at least
four bioflavonoids. At one time they were unofficially called vitamin P, because
they reduced capillary fragility and permeability.
DRI (RDA or AI for Adults)
MAJOR SOURCES
- Inner rind of lemons, limes, oranges, grapefruit.
MAINTENANCE/THERAPEUTIC RANGE
- 100 mg to 1,000 mg. (Only use standardized extracts.)
POSSIBLE THERAPEUTIC APPLICATIONS
- Bruising
- Cancer
- Hemorrhoids
- High cholesterol
- Inflammation
- Ulcers
COMMENTS
- Bioflavonoids usually have antioxidant properties. They also seem to
work well with vitamin C. Rutin is metabolized to quercetin. The quercitrin found in
citrus is related to quercetin. Avoid supplements that list bioflavonoids on the
label, but do not list a standardized percentage. These often will only contain
about 5% active bioflavonoids. Quality products will contain 40% to 50% total
bioflavonoids.
CAUTIONS
- None significant, although grapefruit can interfere with various medications.
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