Insect farming is growing rapidly as a sustainable protein source, but the welfare of farmed insects raises important ethical questions that science is beginning to address.
Insect welfare sits at the genuine frontier of animal ethics where scientific uncertainty about sentience is greatest. The precautionary principle suggests that when uncertainty about suffering capacity exists at the scale of hundreds of billions of animals, welfare consideration is warranted. Research programs are actively investigating insect nociception, and some studies suggest that certain insects show behavioral responses consistent with pain. Industry engagement with welfare science is growing, and some producers are already implementing welfare-conscious practices around killing methods and stocking density.