Avocados may protect the heart in a manner comparable to how the heart-healthy Mediterranean diet protects the heart through olive oil and nuts. This discovery was made by researchers looking for a connection between avocados and heart health. An increase in HDL cholesterol sometimes referred to as "protective cholesterol," was discovered in a review of ten previous studies published in 2018. You found it in participants who consumed from one to three and a half avocados daily. You conducted the examination on people who had their cholesterol levels measured before and after they had consumed avocados.