Palm oil is kind of vegetable oil made from the fruits of trees called oil palms.
It is found in about half of the products that you might find at the supermarket, so it is a very popular ingredient.
In order to grow it, forests are being cut down to make room for oil palm trees to grow.
But this means that orangutans are losing their homes.
Watch Jenny's report and then find out more about it here.
Pictures courtesy of ABC's Behind The News