Bioflavonoids are complex compounds closely associated with vitamin C and found in a wide range of plants, par­ticularly the citrus fruits. All the bioflavonoids enhance the effectiveness of vitamin C, and are recognized as potent antioxidants. The ones most commonly seen in medical and nutritional literature include hesperidin, hesperitin, naringenin, naringin, tangeretin, diosmin, nobiletin, bergapten, natsudaidain and vicenin. Together with vitamin C, they strengthen the capillaries and help prevent excessive menstrual bleeding. They are also anti-viral and anti-inflammatory, protect from free radicals and inhibit histamine release.

Bioflavonoids are therefore indicated in inflammatory and allergic conditions. As a group, several hundred flavonoids have been identified in fruits, vegetables, nuts, seeds, leaves and flowers. Onions and garlic provide rich sources of quercetin, a bioflavonoid with potent anti-carcinogenic activity, which has been shown to inhibit the growth of several types of cancer cells, including breast cancer, ovarian cancer and leukaemia. Quercetin has also been found to be effective in healing wounds, preventing diabetic cataracts and in treating oral herpes. Cherries, hawthorn berries, bilberries and other berries are rich in anthocyanidins and proanthocyanidins, the flavonoids that give these berries their dark reddish-blue colour and which are powerful antioxidants, preventing free radical damage and helping to maintain healthy collagen and capillaries. Buckwheat is rich in the bioflavonoid rutin, which is a well-known treatment for haemorrhoids, varicose veins and hypertension. Hesperidin, the predominant flavonoid in citrus fruits, is chemically similar to rutin. Since bioflavonoid strengthen the capillaries, they can assist in the treatment of duodenal ulcers and retinal haemorrhages.

It has many classes such as red pepper , celery ,onion, fruits, vegetables and citrus fruits etc. Bioflavonoids chemical useful in leukemia in infants and children.. It is also beneficial in may harm hereditary machinery and trigger leukemia, or blood cancer Bioflavonoids is useful in human body and it is foun d iu . soybeans, citrus fruits and, root vegetables etc. It has the majority usually praised for their antioxidant properties.The herbalist completed that bioflavonoid may sluggish artery and vein deterioration and prevent blood clotting. Hence the researchers recommended that bioflavonoids is beneficial in the capillary beds of the human brains such as stress, neuro-inflammatory etc. it is also useful in reduce the swelling in the body.

Bioflavonoids is to treating the eye complaints. Oral bioflavonoid treatment utilizing quercetin newly proved to be clinically useful in men with chronic pelvic pain syndrome.