Insect Welfare: What We Know and What We Don't

As insect farming scales globally and evidence of invertebrate sentience grows, the question of whether insects can suffer has moved from philosophy to welfare science.

Key Facts

Over 1 trillion insects are farmed annually for food, feed, and other products
Research shows insects respond to noxious stimuli in ways that suggest nociception
Some studies have found evidence of pain-like states in bees, including long-lasting behavior change after injury
The UK officially recognized the sentience of decapod crustaceans in 2021; insects remain outside formal sentience recognition
Slaughter methods for farmed insects include freezing, boiling, and grinding - the welfare implications are poorly understood
Switzerland included protections for social insects like ants in its animal welfare ordinance in 2018

Welfare Considerations

The precautionary principle suggests that where evidence of sentience is uncertain, we should act to reduce potential suffering rather than wait for certainty. The scale of insect farming means that even a small probability of meaningful welfare harm translates to an enormous number of potentially suffering individuals. Current welfare science lacks validated welfare indicators for insects, making this one of the most challenging and consequential frontiers in animal welfare.

What You Can Do

Support research funding for insect sentience and welfare science
Apply a precautionary approach to insect product consumption pending clearer evidence
Advocate for insect welfare to be included in food system regulatory frameworks
Back organizations like the Insect Welfare Research Society developing the scientific field
Engage thoughtfully with the philosophical and empirical complexity of insect welfare rather than dismissing it