To be frank, changing palm oil to olive oil does not reduce your cholesterol intake if you cook with the same amount of whichever oil. Reducing cholesterol works if you choose your food properly on the whole on not only changing which type of oil. As long as it is vege based like sunflower seed oil, corn oil, olive oil or even palm oil, they are the same as long as you don't use animal fat oil. Take more white meat, reduce your 'pun fei sau' pork and eat only lean meat and eats lots of fruits and vegetables. You can find more tips from the net.

Changing to olive oil is negligible, why buy expensive oil and does not suit your taste but having the same characteristics as palm oil.