As insect farming scales globally for food and feed, questions about welfare standards for billions of invertebrates are gaining scientific and regulatory attention.
The scale of insect farming — involving trillions of animals — means that even small welfare improvements could have enormous aggregate impact. While the capacity for suffering in insects is uncertain, the precautionary principle supports developing and applying welfare standards now. Key concerns include overcrowding, inappropriate temperature or humidity, painful slaughter methods such as freezing or grinding while conscious, and inadequate nutrition. The Insect Welfare Research Society and similar bodies are developing evidence-based frameworks, and leading producers are beginning to adopt voluntary standards ahead of regulation.