Although bioflavonoids are not true vitamins in the strictest sense, they are sometimes referred to as vitamin P. Bioflavonoids are essential for the absorption of vitamin C, and the two should be taken together. There are many different bioflavonoids, including citrin, eriodictyol, flavones, hesperetin, hesperidin, quercetin, quercetrin, and rutin. The human body cannot produce bioflavonoids, so they must be supplied in the diet.
Bioflavonoids are used extensively in the treatment of athletic injuries because they relieve pain, bumps, and bruises. They also reduce pain located in the legs or across the back, and lessen symptoms associated with prolonged bleeding and low serum calcium. Bioflavonoids act synergistically with vitamin C to protect and preserve the structure of capillaries. In addition, bioflavonoids have an antibacterial effect and promote circulation, stimulate bile production, lower cholesterol levels, and treat and prevent cataracts. When taken with vitamin C, bioflavonoids also reduce the symptoms of oral herpes.
Quercetin, a bioflavonoid available in supplement form may effectively treat and prevent asthma symptoms. Activated Quercetin from Source Naturals is a good source of quercetin. It also contains two other ingredients that increase its efficacy: bromelain, amn enzyme from pineapple, and vitamin C, in th nonacidic form of magnbesium ascorbate. Bromelain and quercetin are synergists, and should be taken in conjunction to enhance absorption. Sources Peppers, buckwheat, black currants, and the white material just beneath the peel of citrus fruits contain bioflavonoids. Sources of bioflavonoids include apricots, blackberries, cherries, grapefruit, grapes, lemons, oranges, plums, prunes, and rose hips. Herbs that contain bioflavonoids include chervil, elderberries, hawthorn berry, horsetail, rose hips, and shepherd's purse.
Citrus fruits are well known for providing ample amounts of vitamin C. But they also supply bioflavonoids; substances that are not required for life but that may improve health. The major bioflavonoids found in citrus fruits are diosmin, hesperidin, rutin, naringin, tangeretin, diosmetin, narirutin, neohesperidin, nobiletin, and quercetin. This article addresses the first five bioflavonoids listed above. Citrus bioflavonoids and related substances are widely used in Europe to treat diseases of the blood vessels and lymph system, including hemorrhoids, chronic venous insufficiency, leg ulcers, easy bruising, nosebleeds, and lymph edema following breast cancer surgery. These compounds are thought to work by strengthening the walls of blood vessels. In addition, highly preliminary evidence suggests that citrus bioflavonoids may help reduce cholesterol levels, control inflammation, benefit people with diabetes, reduce allergic reactions, and prevent cancer. "Sweetie fruit," a bioflavonoid-rich hybrid of grapefruit and pammelo, has shown a bit of promise for treatment of high blood pressure.
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