Are triglycerides the same as cholesterol? What is the difference between them?

No, triglycerides are not the same as cholesterol, although both are types of fats (lipids) found in the blood and are essential for the body's health. However, they differ in their function and how they are processed in the body. Cholesterol is a waxy, fat-like substance found in all cells of the body, which the body needs to build healthy cells and produce hormones and vitamin D. Triglycerides are the most common type of fat in the body and come from the food we eat, especially oils, butter, and other fats, as well as from excess calories that the body does not immediately need. The body converts these excess calories into triglycerides and stores them in fat cells to be used as a source of energy when needed [1].

What are triglycerides?

Triglycerides are a form of energy stored in the body. When you consume more calories than your body needs, it converts these excess calories into triglycerides and stores them in fat cells. When your body needs energy, it releases triglycerides from these cells [2]. High levels of triglycerides in the blood can increase the risk of heart disease and stroke [1].

What is cholesterol?

Cholesterol is essential for vital body functions, but high levels, especially of low-density lipoprotein (LDL) or "bad" cholesterol, can lead to plaque buildup in the arteries, increasing the risk of heart disease. There are different types of cholesterol, such as LDL (bad) cholesterol and HDL (good) cholesterol, and each plays a different role in cardiovascular health [1].

Normal levels of triglycerides and cholesterol

Triglyceride and cholesterol levels are checked through blood tests. For triglycerides, the following are common categories for adults:

• Normal: Less than 150 milligrams per deciliter (mg/dL) [1].
• Borderline high: Between 150 and 199 mg/dL [1].
• High: Between 200 and 499 mg/dL [1].
• Very high: 500 mg/dL or higher [1].

High triglyceride levels of 150 mg/dL or higher are considered a risk factor for heart disease [2]. Very high levels (over 500 mg/dL) can increase the risk of acute pancreatitis [1].

Risks of high triglycerides

High triglyceride levels usually do not cause any obvious symptoms. However, if left untreated or unmanaged, they can increase the risk of serious complications such as coronary artery disease and stroke. In some very rare cases, symptoms may appear with very high triglyceride levels, such as abdominal pain or enlargement of the liver and spleen [1].

How to lower triglyceride levels

Lifestyle changes are the first and essential step to lowering triglyceride levels. These changes may include:

• Choosing heart-healthy foods: Limiting sugars, refined carbohydrates, and saturated fats, and focusing on fruits, vegetables, whole grains, and lean proteins [2].
• Regular physical activity: Exercising regularly can help lower triglyceride levels [2].
• Maintaining a healthy weight: Losing excess weight can significantly reduce triglyceride levels [2].
• Limiting alcohol intake: Alcohol can increase triglyceride levels [1].
• Quitting smoking: Smoking is a risk factor for heart disease and can affect lipid levels [1].

In some cases, if triglyceride levels remain high despite lifestyle changes, a doctor may prescribe medications such as fibrates, concentrated omega-3 fatty acids, or statins to help lower them. It is important to consult a healthcare provider to determine the most appropriate treatment plan for your condition [1].

For more information about triglycerides, their normal levels, risks, and how to lower them, you can visit Triglycerides: Normal Levels, Risks, and How to Lower Them (Arabic).

Medical references

• High Blood Triglycerides High Blood Triglycerides
• Triglycerides