What effect does monounsaturated fat have on HDL and LDL levels?

Monounsaturated fats have a favorable effect on cholesterol levels in the body. They are known to help increase the levels of High-Density Lipoprotein (HDL), which is often referred to as "good" cholesterol. HDL plays a crucial role in transporting cholesterol away from the arteries and back to the liver, where it is processed and removed from the body. This helps to reduce the risk of heart disease.

At the same time, monounsaturated fats tend to lower the levels of Low-Density Lipoprotein (LDL), known as "bad" cholesterol. Elevated levels of LDL are associated with an increased risk of cardiovascular issues, as it can lead to the buildup of plaques in the arteries.

Incorporating foods rich in monounsaturated fats, such as olive oil, avocados, and nuts, into the diet can help improve the balance of HDL and LDL, promoting overall heart health. This understanding explains why the choice that states monounsaturated fats raise HDL and lower LDL is the correct answer.