High triglycerides but normal cholesterol levels can result from various factors such as diet, medications, and larger health problems. Triglycerides and cholesterol are both types of fat in the blood, but they are not the same. While high triglycerides may not always lead to high cholesterol, they can cause health problems on their own. Here are some common causes of high triglycerides but normal cholesterol levels:

• Diet: A diet high in calories from carbohydrates and sugars but not from high cholesterol foods can lead to high triglycerides without high cholesterol.
• Obesity: Being overweight or obese can contribute to high triglycerides.
• Smoking: Smoking can also cause high triglycerides.
• Liver diseases: Certain liver diseases, such as fatty liver disease and cirrhosis, may cause high triglycerides without high cholesterol by changing the way the liver makes and uses triglycerides.
• Autoimmune conditions: People who have autoimmune conditions such as lupus and rheumatoid arthritis experience constant inflammation, which can lead to high triglyceride levels.

Other factors that can cause high triglycerides but normal cholesterol levels include lack of exercise, heavy alcohol use, and certain medications. It is important to note that high triglyceride levels increase the risk of heart disease and stroke, as well as acute pancreatitis. Therefore, it is essential to maintain healthy triglyceride levels through a healthy lifestyle and medical treatment if necessary.