This is my first post on this site, and I'm excited to be exposed to all the accumulated experience and knowledge here. I'm wondering if others have tried using niacin to improve their lipid profile and found that it greatly increased their glucose level. Studies indicate that glucose levels are not supposed to rise much (8-10%) but mine were spiking to >200 2 hour postprandial (<160 previous) and >150 fasting (<125 previous). This is not acceptable to me. I tried Niaspan and Endur-Acin, both sustained release formulations. I've heard that glucose levels normailize over time but I'm not willing to stress my arterial walls and myself long enough to find out. There are numerous other natural alternatives to niacin that I am taking anyway to improve my lipid profie. I'm Type 2.