Researchers in Spain assigned 21 people with high cholesterol to eat a high-fat breakfast including either regular virgin oil, or the same oil refined to remove most of the phenols, a class of anti-oxidants.The study referenced compared regular virgin oil to a specially processed oil that had lowered phenols, not lowered cholesterol. The conclusion about tropical oils is not addressed by this study.
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Any nontropical vegetable oil is better for you than butter, palm oil, or coconut oil, all loaded with artery-clogging saturated fat, or margarine, high in trans fat, which maybe harder on the heart.