Insect farming for food and animal feed is growing rapidly. Whether insects are sentient and can suffer remains scientifically debated, but the precautionary principle suggests welfare consideration at scale.
Insect farming presents a welfare question at the frontier of moral consideration. The scientific uncertainty about insect sentience means the welfare calculus is genuinely unclear, but the scale — hundreds of billions of animals — means that even a small probability of morally significant suffering represents enormous aggregate harm if insects can suffer. The precautionary approach — implementing welfare improvements where cost is low relative to potential benefit — is the rational response to this uncertainty. Growing insect farming certifications are beginning to address housing conditions, harvesting methods, and feed quality as welfare-relevant parameters.