The one chart you need to understand any health study

January 5, 2015 4:28 PM

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Today, the prestigious academic journal JAMA Internal Medicine published an article on the association between eating whole grains and having a lower risk of death from cardiovascular disease. Many news sources are going to have headlines like "Whole grains lead to heart-healthy benefits" and "Whole Grain Consumption Lowers Death Risk."

But you shouldn't believe them. While this latest work represents excellent science — a prospective cohort observational study, in scientific parlance — it's just one study. And when you look at a single study, you're getting only one piece of the puzzle, one interpretation of the research question,...

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