Certainly, Olive Oil has been around for a very long time, it wasn't until the 20th century that it became a major food product. Olive Oil was more valued for cosmetics, medicine, and in lamps. Actually, the original Olympic torch burned olive oil. Also, note that Olives are actually a fruit, but I understand why you bring it up as an example.

I am talking about those other vegetable oils, like grapeseed oil, canola oil, sunflower oil, cottonseed oil. Do you remember Crisco short, this was a new product produced from cottonseed oil which had been hydrogenated though intensive industrial processes and sold as a cheaper alternative to the normal saturated fats used as the time.

I hope you actually look at the links and videos I put up in my previous comment. Your ad hominem attacks against Nina Teicholz, like "I wouldn't trust that lady to tell me what to eat" and "she's a journalist" don't go unnoticed.

I also want to point out her BMJ article was not retracted. The petition signed by 180 scientists was found to be without merit. I do find it telling you bring up the petition, yet you fail to say that article was not retracted.