 [ Symptoms ] what are triglycerides in your body [ Disease ] triglycerides are a type of fat found in your blood that your body uses for energy while you need some triglycerides for good health high triglyceride levels are not healthy a fasting blood test can be used to measure your triglyceride levels you can make diet and lifestyle changes to help lower your triglyceride levels stay at a healthy weight limit fat and sugar intake be more active do not smoke and limit your alcohol consumption