It’s one of the most controversial vegetable oils on the planet, so what’s palm oil doing in your deodorant? That’s exactly what eco-conscious consumer Sheila O’Reilly wanted to find out when she called up makers of some popular consumer products. Palm oil is ecologically problematic and has been linked by the World Wildlife Fund, among several others, to deforestation and other environmental abuses. …Marketplace’s latest investigation has found it’s not always possible for consumers to find out whether or not palm oil is in their products, and in many cases, companies refused to disclose this information. …Palm oil is harvested from the oil palm plant. It grows easily and produces much more oil per hectare than other vegetable oils. It’s why growers in Africa, Asia and South America have been clear-cutting rainforests to make room for the lucrative crop.