Phosphatidylinositol increases HDL-C levels in humans You need to know that the next strong push in the research for the pharmaceuticals is a drug that will inhibit lipoprotein lipase in the liver and thereby raise HDL levels. Still amazes me how much money a drug company will spend researching to find a patentable product when natural compounds exist that already work!! Incidentally, exercise, niacin and soy are also know to increase HDL levels as well… Read entire article here