Lifestyle changes that help lower triglyceride levels include losing weight, cutting back on calorie consumption and avoiding sugary and refined foods, according to WebMD. Limiting dietary cholesterol, choosing foods containing monounsaturated fats, eliminating trans fat in the diet, restricting alcohol intake and exercising regularly are other ways to lower triglyceride levels.
High triglycerides may contribute to hardening of the arteries or atherosclerosis, a build-up of plaque inside the arteries that increases the risk of stroke, heart disease and heart attack, according to the National Heart, Lung, and Blood Institute. Other conditions that increase the risk of heart disease and stroke, such as obesity and metabolic syndrome, are also associated with high triglyceride levels. Metabolic syndrome is indicated by too much fat around the waistline, high blood pressure, high triglycerides, high blood sugar and abnormal cholesterol levels, explains WebMD.
High triglycerides can also be a sign of poorly managed Type 2 diabetes, low levels of thyroid hormones, liver or kidney disease, or a rare genetic condition that affects the body's ability to convert fat to energy, states WebMD. Some medications such as beta blockers, birth control pills, diuretics, steroids or tamoxifen are also believed to raise triglyceride levels. Supplements made of natural substances that help lower triglyceride levels include niacin, which can be obtained with a doctor's prescription, or Omega-3 fatty acids.