Unsaturated Fat: Potential benefits of unsaturated fats

Unsaturated fats can help lower total cholesterol and low-density lipoprotein (LDL) cholesterol levels, particularly when used in place of, and not in addition to, saturated fats. Because unsaturated fats reduce these levels of cholesterol, they help prevent fatty deposits (plaques) from building up in the arteries. This reduces the risk of heart disease and stroke.

In addition, monounsaturated fats may help raise a person’s high-density lipoproteins (HDL), the so-called “good” cholesterol. HDL cholesterol carries cholesterol from the blood back to the liver. The liver then breaks down the cholesterol so it can be eliminated from the body. This helps prevent excess cholesterol from being deposited in the coronary arteries.

A type of polyunsaturated fat known as omega-3 fatty acid particularly appears to decrease the risk of coronary artery disease. Omega-3s lower levels of both total cholesterol and triglycerides. Scientists believe that omega-3s help prevent blood platelets from clotting and sticking to artery walls. This may lower the risk for blocked blood vessels, strokes and heart attacks. Omega-3s may also help prevent hardening of the arteries, lower blood pressure levels and help protect the body against irregular heartbeats.

Although the benefits of omega-3 fatty acids are not fully understood, many experts urge people to eat seafood and fish (which is rich in omega-3 fatty acids) two to three times a week because of the health benefits associated with these foods.

Another polyunsaturated fat known as an omega-6 fatty acid (found in certain vegetable oils) also appears to reduce the risk of cardiovascular disease and lower total LDL-cholesterol levels. However, it may also lower HDL levels.






This Article was taken from: yourtotalhealth.ivillage