An interesting read from Mother Earth News, this article discuses Ancel Keys' lipid hypothesis which many are now questioning. This held that a high-fat diet — particularly one high in saturated fat — contributed to high cholesterol, which in turn led to heart disease in the form of plaque buildup in the arteries. Following suit, the food industry, medical community and media all jumped on the low-fat bandwagon, vilifying saturated fats (mostly animal fats) and promoting vegetable fats and low-fat diets. Cut to the present, and the United States still has high rates of cardiovascular disease. We are overweight and unhealthy despite five decades of low-fat and no-fat health advice and faddism.