Heliciculture (snail farming) is growing globally for food production. The welfare implications for snails are poorly understood but merit attention as evidence for invertebrate sentience accumulates.
Snail welfare sits in a zone of genuine scientific uncertainty. While snails clearly have nervous systems that detect and respond to harmful stimuli, the question of whether this involves subjective suffering in any morally relevant sense remains open. The precautionary principle suggests that given the uncertainty and the large numbers of snails farmed, welfare considerations deserve investigation rather than dismissal. Standard practices including high-density housing, dehydration during holding and transport, and slaughter methods that may involve prolonged distress are worth examining if future research confirms snail sentience. The growing interest in invertebrate welfare science creates an opportunity to establish welfare standards proactively rather than reactively.