We propose an empirical study of French sales in conventional food retailing and in specialised organic stores for 2012. We ex amine the plant or animal origin of food products, as an indicator of the environmental and health impacts of sales, and their degree of processing, as an indicato r of their health impact. The resu lts indicate that sales of organic food products are more plant-based and less proce ssed in specialised organic stores than in conventional retail stores, two criteria for a better health and environmental impact. In conventional stores, organic sales are more pl ant-based and less processed than conventional sales. Organic sales in conventi onal stores show some specific ity, having the highest share of particular product ranges lacking a clear health or environmenta l impact, such as processed culinary ingredients or unpro cessed or minimally processed animal products. Building a typology of buyers in conventional stores, we find that even purchases by buyers with the highest organic purchase intensity in convent ional stores are less plant-based and more processed than average purchases in specialised organic stores. With less plant-based and more processed organic products sold in conventi onal retail stores, our re sults suggest that the conventionalisation of organic f ood retailing has nega tive health and environmental impacts.