What is Doctor’s Best Vein Support with DiosVein? Doctor’s Best Vein Support with DiosVein supports blood vessel health and promotes healthy circulation. It contains DiosVein, a form of the flavonoid diosmin derived from sweet orange which provides a rich source of bioflavonoids. Clinical studies conducted in Europe have shown DiosVein to be particularly effective at supporting the health of blood vessels and promoting normal circulatory function. Doctor’s Best Vein Support also features MenaQ7 which provides natural vitamin K2 in the form of menaquinone-7, a highly bioactive form of K2 found in the traditional Japanese fermented food, natto. Recent studies highlight the importance of adequate vitamin K2 levels for healthy blood vessel function. How does it work? Diosmin is a flavonoid that can also be isolated from hesperidin, a flavonoid derived from citrus fruits. DiosVein is derived specifically from Sweet Orange. When taken orally by humans, diosmin is converted to diosmetin by the bacterial flora of the intestines prior to being absorbed into the bloodstream. Certain studies suggest that diosmin has numerous beneficial effects on blood vessels and circulation. These effects include enhancing venous tone, supporting lymphatic drainage, promoting the health of cells comprising the blood vessel lining and supporting normal, but not excessive, capillary permeability. Vitamin K activates a protein present in blood vessels known as Matrix Gla Protein (MGP), which inhibits arterial calcification and is known to be necessary for maintenance of vascular health.