With a total of more than 7.5 million person years of observation, further analyses by Etemadi and colleagues (doi:10.1136/bmj.j1957) now show an association between high intakes of red and processed meat and elevated total mortality and mortality from most major causes: cardiovascular disease, diabetes, cancer, and hepatic, renal, and respiratory diseases.As the BMJ editorialist goes on to remind you of what you already know or should know -- even though you have been carefully avoiding thinking about it -- 30% of the earth's land surface is now pasture, or devoted to growing animal feed, which means:
Damage to planetary health includes depletion of aquifers15 (producing 1 kg of meat protein requires more than 110 000 L of water22); production of 37% of anthropogenic methane (with 23 times the global warming potential of CO2) and 65% of anthropogenic nitrous oxide (almost 300 times the potential of CO2); groundwater pollution; and 64% of anthropogenic ammonia emissions, which contribute significantly to acid rain and acidification of ecosystems.15 The combination of rainforest destruction for livestock and the production of greenhouse gases by livestock contributes more to climate change than do fossil fuels used for transport.15There is also antibiotic resistance, recombinant influenza (from pig farms), and human hunger -- 95% of soybean is fed to animals. Contrary to common belief, our hunter-gatherer ancestors prior to the last ice age consumed much less meat than we do. So did people in Europe right up until the 20th Century. Our meat based diet is unprecedented in human history. So just stop it.