The rise of ultra-processed foods (UPFs) worldwide poses a major public health threat that is displacing fresh food. This the warning of a three-paper series published in The Lancet by 43 global experts who say that the onus to improve diets should not be placed on the individual—but governments and corporate companies, who must reduce UPF production, marketing and consumption and improve accessibility to healthy food. UPFs refer to heavily processed foods and drinks that often include