Eating red meat is likely to be healthier than many studies suggest 🥩 In recent years the consensus on red meat has been shaken. Doubt has been cast on the quality of whole reams of studies – and the dietary advice taken from them 🔴 StuartJRitchie
– which take into account a food’s carbon footprint as well as its health impact- advise eating less than 98g of red meatThese guidelines come from a lot of research: huge studies, sometimes including millions of people, have investigated the links between eating red and processed meat and a variety of different health complaints.
But in recent years, this consensus has been shaken. Studies began to appear that cast doubt on the quality of whole reams of studies – and the dietary advice taken from them.In 2019, athat raised major questions about the link between red meat and health. Three of the studies reviewed all of the available evidence on the links between red meat and cancer, heart disease, and death, and concluded that despite the sheer number of studies, the state of the evidence was very poor.
That’s mainly because of “confounding”, the major scientific problem that bedevils nutritional research. In an observational study, where you ask people about their diets, then later check their health, it’s easy to assume that the diet must have caused the disease. But there could be a third factor causing both. For example, if living in poverty affects the amount of meat people eat as well as their health , then poverty, not diet, might be the relevant factor.
Almost every study ever done on red meat and health is an observational study. The reviews noted that large numbers of them don’t even try to take confounding factors like poverty into account. And these were far from the only problems faced by the studies .for scientists who do nutritional research. Here are just a few:.
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