For decades, fat has been vilified as the worst part of the American diet. Scientists made their case, the government codified it with nutritional guidelines, and industry launched a fat-free food frenzy that hasn’t abated. But in those 40 years, people got sicker—and fatter. The new science shows fat isn’t the reason, and in fact, the nutrient might deserve even more room on our plates.
In this week’s cover story, “Don’t Blame Fat,” TIME debunks misconceptions and mistakes about saturated fat, and reveals how we really should be eating. Given this new knowledge, you might be surprised by what foods you should actually be avoiding. See how much you really know, by clicking on which food you think is healthier.
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(Note: For our assessments we consulted nutritionists, like registered dietitian Keri Gans, weighed nutritional data from the USDA National Nutrient Database for Standard Reference and used our common sense).