Triglycerides are the most common kind of fat found in the human blood, and are one of the sources of energy in the body.
What we eat is either used up to produce energy for the body to function or otherwise it is stored in the form fat that is made out of triglycerides.
Those that have a calorie surplus (eat more than they expend) they are likely to have higher triglyceride levels.
When kept in check (normal levels are those that are below 150), these fats are good and essential for the body, however when their levels are too high (200 and higher), they could be underlying causes for increasing risk of heart disease.
For many, it is linked to the incidence of coronary artery disease. In rare cases, high triglyceride levels are responsible for inflammation of the pancreas.
High triglycerides could also be an indication that there are other problems such as untreated diabetes mellitus.
High levels of triglycerides is often part of a group of symptoms collectively referred to as the Metabolic Syndrome which is characterized by high blood pressure, accumulation of fat around the abdomen, low HDL, which may work together to increase risk of heart disease.