In large doses, niacin has been shown to lower blood levels of

There are choices for this question namely:

A. triglycerides
B. glucose
C. LDL
D. HDL

The correct answer is "LDL" or low density lipoproteins. Low density lipoproteins, also known as "bad cholesterol" are the one responsible for the deposition of fat and cholesterol onto the peripheral blood vessels, including the coronary arteries which poses a risk for developing atherosclerosis and its complications (i.e. ischemic heart disease). Niacin functions to overall improve the lipid profile of a patient by lowering LDL and raising the levels of high density lipoprotein or HDL also known as "good cholesterol".