Earlier quoted context omitted.
What you listed likely contains PUFAs, specifically linoleic acid[1]. Even egg yolks contain 17% LA compared to 18% for canola oil and 50% for soybean oil. I would say besides mayo (usually made with a seed oil), egg yolk would contain the highest amount of Poly Unsaturated Fatty Acids and Linoleic acid in your examples. If my semi-controversial diet book is correct, PUFAs are to blame. [1] https://en.m.wikipedia.org…
Do the other emulsifiers from the study in this article contain PUFAs? If not, then then there's probably some other cause. Maybe PUFAs from other sources + emulsifiers, maybe something else entirely. So to the delight of the researchers applying for grants, this needs more study!
The researchers also did not control for PUFA consumption, only SFA consumption.