The one thing that I do really like from the book is thinking about the epigenetic history that our food is communicating to our bodies. As you say, the natural fats tend to be more stable, but the factory farming system is heavily influencing what it means to be natural…
Just finished the chapter on sugar, so guessing based on the volume of pages that are dedicated in the book, vegetable oils are the worst by a factors of 5 vs sugars. next up is to get into the meaty bit - the human diet 