What type of fiber is known for its ability to lower LDL cholesterol levels?

The ability to lower LDL cholesterol levels is primarily associated with soluble fiber. Soluble fiber dissolves in water and forms a gel-like substance in the digestive tract. This gel binds to bile acids, which are made from cholesterol, and helps to remove them from the body. As a result, the liver needs to use more cholesterol to produce new bile acids, leading to a reduction in cholesterol levels in the blood, particularly low-density lipoprotein (LDL) cholesterol, which is often referred to as "bad cholesterol."

Various sources of soluble fiber include oats, barley, nuts, seeds, beans, lentils, peas, and some fruits and vegetables. Incorporating these foods into a diet can be an effective strategy for managing cholesterol levels and promoting cardiovascular health. Other types of fiber, such as insoluble fiber, do not have the same effect on cholesterol and are more beneficial for promoting bowel regularity and preventing constipation.