By Dr. Simon Goddek drgoddek.com Today, I am going to red-pill you about vegetable seed oils. 1. Unnatural Extraction Process: Unlike the fruit oils from coconut, avocado, or olive, which can be extracted through pressing, seed oils made from canola, cottonseed, corn, grapeseed, ricebran, sunflower, safflower, and soy require unnatural methods for extraction.