Palm oil is one of those ingredients that seems to have found its way into everything, kind of like cranberries got into all the juices in the USA. Once trans-fats got a bad rap, producers rushed to find a substitute and landed on palm oil.
Unfortunately, this cheaply produced oil is knocking out large swathes of delicate ecosystems such as the Leuser ecosystem in North Sumatra. This is the last place on earth where critically-endangered elephants, tigers, rhinos and orangutans all still coexist under the same forest canopy.
This challenge is to find out which products are made with conflict palm oil and avoid buying them.
Palm oil production is responsible for a 50% decline in the population of Borneo's orangutans.
Burning peatlands to clear the way for palm oil plantations emits harmful gases.
Orangutans aren't the only ones taking a hit - critically endangered species such as Sumatran tigers, rhinos and elephants are also losing precious habitat to palm oil plantations.
Then there's the human factor. The palm oil industry has been linked to major human rights violations such as child labour, along with corporations taking land owned by indigenous peoples.