Waitrose refused my review for a Christmas desert which LOOKED really good but which contained palm oil. Greenpeace have stated that there is no such thing as "sustainable" and/or "responsibly sourced" palm oil and it's having a devastating impact on wildlife in all the countries where it's grown, causing extinctions of many species.
Recently scientists have discovered that it also accelerates certain cancers causing them to metastise:-
"Researchers at IRB Barcelona publish in the journal Nature the mechanism by which dietary palmitic acid (and not oleic or linoleic acid) favours tumour expansion. Tumour cells temporarily exposed to a diet rich in palmitic acid develop a more aggressive profile that endures as a form of cellular “memory”.
This more aggressive profile drives the activation Schwann cells associated with the tumor and the secretion of an extracellular tissue which, when blocked, impedes the metastatic capacity of the tumour."
So I think it's only fair that people should have this information so they can thoroughly check ALL ingredients lists.