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Fig. 2: Mechanism of niacin action. Niacin inhibits the release of free fatty acids from adipose tissue, which leads to decreased VLDL secretion by the liver. FFA = free fatty acids, TG = triglycerides, VLDL = very-low-density lipoprotein, LDL = low-density lipoprotein, HDL = high-density lipoprotein. Photo: Paulette Dennis
