Well palm oil has 10% PUFAs and CO only 1.6% according to wiki. So I think I'll stick with CO for now.

Incidentally, I do believe one of the reasons ZC works so well for so many people is that it is low PUFA, since lamb and beef are the most frequently eaten meats and nuts and pork tend to be limited. Also, the gelatin/e defo improves the amino acid imposition of the diet.