Harvard Heart Letter

Triglycerides: A big fat problem

This forgotten fat is a source of confusion "" and heart disease.

Why is it that the most common form of fat in food and in the bloodstream is the one that's most often ignored? Triglycerides take a back seat to low-density lipoprotein (LDL) and high-density lipoprotein (HDL) largely because their precise role in heart disease has been something of a mystery.

That's changing. Researchers are getting a grip on how triglycerides add to atherosclerosis, the artery-clogging process at the root of most heart disease. This knowledge may change how triglycerides are measured and when they need to be treated.

To continue reading this article, you must login.
  • Research health conditions
  • Check your symptoms
  • Prepare for a doctor's visit or test
  • Find the best treatments and procedures for you
  • Explore options for better nutrition and exercise
Learn more about the many benefits and features of joining Harvard Health Online »