Transitioning global food systems toward plant-based diets offers the largest potential welfare improvement for animals of any single policy intervention. Understanding the evidence helps prioritise effective action.
No single intervention in animal welfare comes close to the scale of impact of transitioning food systems away from animal agriculture. The sheer number of animals in industrial farming - tens of billions of sentient creatures experiencing varying degrees of suffering - means that even modest dietary shifts by large numbers of people translate into enormous reductions in total animal suffering. Understanding this scale motivates the focus many welfare organisations place on consumer behaviour change, food system policy, and alternative protein development.