Seed oils like canola and soybean oil were not present in significant amounts in ancestral diets and are now used in processed foods as cheaper preservatives, contributing to inflammation.

“these are things corn oil canola oil sunflower safflower soybean Etc this is why I do this content on social media and I say hey look so many things in the grocery store that are labeled as healthy or vegan or plant-based or low-fat maybe not the low-fat stuff so much but so many of these things in the grocery store are going to have seed oils in them they are the predominant oil in the food supply because they're cheap they have some sort of a preservative effect”