Ancel Keys, a scientist at the University of Minnesota. His famous study of 10,000 people across seven countries confirmed that elevated blood cholesterol correlated with heart disease. But Keys went further, and implicated diet. Consuming fat, specifically saturated fat, he said, was the problem. Keys was not one for nuance. Obesity was “disgusting,” he said. “Maybe if the idea got around again that obesity is immoral, the fat man would start to think.” Keys’s advocacy eventually led to official guidelines recommending low-fat, high-carbohydrate diets, despite the lack of any more rigorous
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