Dr. Esselstyn says, "NO OIL! Not even olive oil, which goes against a lot of other advice out there about so-called good fats. The reality is that oils are extremely low in terms of nutritive value. They contain no fiber, no minerals and are 100% fat calories. Both the mono unsaturated and saturated fat contained in oils is harmful to the endothelium, the innermost lining of the artery, and that injury is the gateway to vascular disease. It doesn’t matter whether it’s olive oil, corn oil, coconut oil, canola oil, or any other kind. Avoid ALL oil."