Bioflavonoids – Best Nutrition Products



Bioflavonoids are a group of water-soluble substances that occur mainly as natural pigments in plants, flowers and in citrus fruits (where they are found in the white portion of the peel).  They may occur as natural dyes.  There have been more than 800 flavonoids discovered to date.  The numerous ongoing worldwide bioflavonoid research programs will likely uncover many more to add to the list.

Szent-Gyorgyi, in the mid-1930s, first isolated a material from citrus rind called citrin. It was used in the treatment of weak capillaries (our smallest blood vessels, 1/2000 of an inch in diameter). Citrin was named vitamin P at that time, but soon it was concluded that bioflavonoids were not essential for life and they lost their vitamin status. Although they are no longer considered to belong to the vitamin group, and although most of the world does not use the term ‘vitamin P,’ some countries, including Russia, still do. Originally, it was thought that flavonoids served no useful role in the prevention or treatment of human disease. Today, we know that although bioflavonoids are not vitamins, they do play a significant role in human nutrition, and in the prevention and treatment of numerous diseases.

Bioflavonoids are active antioxidants. They are present in our food. Their role in the prevention of heart disease is well documented. Some are anticarcinogenic, inhibiting the growth of cancer cells and showing cytotoxic capacity toward certain cancer cells. Bioflavonoids enhance the absorption and effects of vitamin C and have antibacterial potential. They can control the growth of certain bacteria (a bacteriostasic effect) or may actually kill bacteria (an antibiotic effect).

Therapeutic Uses

•     disorders of blood vessels

•     diabetes and its complications

•     peptic ulcer disease

•     menopausal symptoms

•     overexposure to X-rays, or radiation therapy

•     thrombophlebitis (blood clot formation, usually in a deep leg vein)


There are no recommended daily requirements for bioflavonoids.


•     citrus fruits (including orange, citron, lemon, lime, grapefruit, and tangerine)

•     grapes, cherries, berries, plums, cantaloupes, apricots, papaya

•     peppers, broccoli, tomatoes

•     tea, coffee, cocoa, red wine


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