How does fiber affect cholesterol levels?

Fiber plays a significant role in managing cholesterol levels, particularly by helping to lower levels of LDL cholesterol, which is often referred to as "bad" cholesterol. When soluble fiber is consumed, it binds with cholesterol in the digestive system and facilitates its excretion from the body. This process involves the formation of a gel-like substance that traps cholesterol and bile acids, reducing their absorption into the bloodstream.

As a result, the body is compelled to utilize more cholesterol to produce bile acids, further helping to decrease the overall levels of cholesterol circulating in the blood. It is especially beneficial for individuals looking to improve their heart health, as lower LDL cholesterol is associated with a reduced risk of cardiovascular diseases.

The other options do not align with the well-supported understanding of how dietary fiber affects cholesterol levels. Unlike the correct answer, the other statements do not accurately represent the beneficial effects fiber can impart on cholesterol management.