Approximately 70-80% of the olive oil sold in Ukraine, especially in large containers and online, is counterfeit, often made from sunflower oil with added flavorings. Maxim Nesmiyanov, the executive director of the Consumers' Union of Ukraine, emphasizes the deception of consumers regarding quality and the potential health risks from these adulterants. He suggests that buyers look out for labels in Ukrainian to avoid counterfeit oil. However, he notes a lack of accountability and regulation, especially in online sales.