Triglycerides are a type of fat found in the blood, primarily derived from foods, especially fats and carbohydrates. When you eat, your body converts excess calories into triglycerides, storing them in fat cells for energy between meals. High triglyceride levels can increase the risk of heart disease and may be a sign of metabolic issues, such as diabetes or obesity. A healthy triglyceride level is essential for cardiovascular health, and it is often managed through diet, exercise, and sometimes medication.