Over recent years, there has been a shift in bargaining power in the food supply chain, mostly to the advantage of the retail sector and some transnational companies and to the detriment of suppliers, in particular primary producers. The concentration of bargaining power has led to the abuse of positions of dominance causing weaker operators to become increasingly vulnerable to Unfair Trading Practices (UTPs). The opinion takes stock of the impact of UTPs, stresses the difficult position of the most vulnerable actors along the chain and calls for action at EU level to stop UTPs and promote a fairer food supply chain.