Studies have been linking red meat consumption to health problems like heart disease, stroke, and cancer for years. But nestled in the recesses of those published papers are notable limitations. Nearly all the research is observational, unable to tease out causation convincingly. Most are plagued by confounding variables. For example, perhaps meat eaters simply eat fewer vegetables, or tend to smoke more, or exercise less? Moreover, many are based on self-reported consumption. The simple fact is that people can’t remember what they eat with any accuracy. And lastly, the reported effect sizes in these scientific papers are often small. Is a supposed 15% greater risk of cancer really worth worrying about?
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