Niacin 500mg Extended Release tablets contain Niacin (vitamin B3), a water soluble vitamin with an important role in cellular metabolism.* Niacin has a very long history of clinical use in supporting cardiovascular health and has been shown to support lipid metabolism, Cholesterol, LDL, Lipoprotein (a) and HDL.* Niacin has an impressive record of nutritional supportive effects on cholesterol metabolism that are documented in numerous clinical trials.* Clinical studies also suggest niacin may also support the peripheral circulatory system and healthy fibrinogen production.* Vital Nutrients Niacin 500mg Extended Release Tablets contain a time-release matrix that slowly secretes niacin into the body.* Clinical trials have demonstrated bioavailability and tolerance of Vital Nutrients extended release Niacin.* 1500 mg per day supports lipid metabolism.