this post was submitted on 23 Apr 2025
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A sustainable diet leaves room for two chicken breasts a week, study says (phys.org)
submitted 1 day ago by RvTV95XBeo@sh.itjust.works to c/climate@slrpnk.net
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255 grams per week. That's the short answer to how much meat you can eat without harming the planet. And that only applies to poultry and pork.

Beef cannot be eaten in meaningful quantities without exceeding planetary boundaries, according to an article published by a group of DTU researchers in the journal Nature Food. So says Caroline H. Gebara, postdoc at DTU Sustain and lead author of the study."

Our calculations show that even moderate amounts of red meat in one's diet are incompatible with what the planet can regenerate of resources based on the environmental factors we looked at in the study. However, there are many other diets—including ones with meat—that are both healthy and sustainable," she says.

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[–] JubilantJaguar@lemmy.world 16 points 23 hours ago (2 children)

This has been my rule of thumb for a while. It should be clear as day that 9 billion people cannot all chow on hefty ruminant mammals. We would run out of land even before it cooked the climate.

The problem with chicken farming is the cruelty.

[–] jagged_circle@feddit.nl 5 points 20 hours ago (1 children)

No, its also the environmental impact. We passed 350 ppm.

The article is nonsense because it must be zero. We're already in a positive feedback loop. We have to reduce all emissions to zero to mitigate as much as possible. There is no amount of emissions that are acceptable.

[–] JubilantJaguar@lemmy.world 3 points 17 hours ago

Yes but that logic changes the goalposts a bit. The question of how to undo existing damage, or what we should do ethically, is not the same as the question of what is theoretically sustainable.

[–] TheFriar@lemm.ee 4 points 22 hours ago

If you’re only eating two breasts a week, people can spring for the free range stuff