VLDL and HDL are types of cholesterol in your blood. VLDL carries triglycerides from the liver to tissues, and high levels can increase the risk of heart disease. HDL is the good cholesterol that helps remove excess cholesterol from the blood, and higher levels are protective. Your VLDL of 29 is generally within the normal range, while your HDL of 39 is slightly below the recommended level, so improving HDL through exercise and diet may help.