Some of The Salt's most popular posts of 2012 included coffee, pink slime and Downton Abbey. Daniel Acker/Landov; Carnival Film & Television Limited 2011/Masterpiece; Adam Cole/NPR; Robyn Mackenzie/iStockphoto.com; Lass/Getty Images hide caption

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Members of the online community Track Your Plaque get advice from a doctor and each other on how to cook low carb meals. iStockphoto.com hide caption

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We Evolved To Eat Meat, But How Much Is Too Much?

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Vlad Averbukh, 29, a follower of the paleo diet, eats raw meat along the Hudson River in New York in 2010. (Averbukh did not weigh in on our blog post on the paleo diet.) Emmanuel Dunand/AFP/Getty Images hide caption

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