How precision fermentation technology could reduce farm animal numbers and welfare burden.
Precision fermentation represents one of the most promising long-term pathways to reducing farm animal welfare burden at scale. By producing the proteins that consumers value most in animal products — cheese proteins, egg proteins, meat flavor compounds — through microbial fermentation rather than animal farming, the technology offers the possibility of satisfying demand for familiar foods without the welfare costs of animal production. The welfare calculation is significant: billions of farm animals annually experience the deprivations of intensive production systems. Technologies that reduce the scale of animal farming while maintaining food security and consumer satisfaction represent a genuine welfare-positive future. Supporting the development and regulatory approval of these technologies is a high-leverage welfare intervention.