Motivated by the evolving global food landscape and its detrimental impacts on society, the environment, and health, this research aims to understand consumer perceptions, preferences and involvement regarding sustainable food products and consumption practices. To this aim, three countries were chosen for their distinct economic, cultural, and demographic differences (Spain, Turkiye, and Colombia), enabling an exploration of how these factors influence sustainability perceptions. The results show high levels of awareness, knowledge, consumption, and willingness to switch to more sustainable habits, although differences between countries were also found (price sensitivity in Spain and demand for information regarding sustainable food in Colombia). In addition, a group of consumers has been identified that is influenced by health, shows positive behaviours and perceptions towards sustainable food, and is not price sensitive. The study is significant, as it addresses the information gap between consumers, producers, and policymakers regarding sustainable food awareness. It seeks to provide insights into cultural influences on sustainability perceptions and aims to assist in developing educational programs and policies to promote sustainable consumption.