A modelling study based on Canadian data suggests that ultra-processed foods (UPFs) could be a substantial, potentially preventable contributor to heart disease. The research estimates that UPF consumption may account for as much as around one quarter of heart disease cases and deaths, indicating that reducing intake could substantially lower the burden of the disease. The analysis focuses on how commonly people eat UPFs such as ready meals, breakfast cereals, protein bars, fizzy drinks and fast food—foods increasingly consumed in many countries.

While the study highlights possible benefits from diet changes, it does not claim that UPFs are the only cause of heart disease. The findings are presented as estimates from modelling rather than direct evidence from a randomized trial. Researchers and commentators therefore frame the results as suggesting potential public health gains if people cut back on UPFs, alongside other lifestyle and medical risk factors.

Overall, multiple outlets report consistent figures linking UPFs to a large share of heart disease outcomes and point to a potential reduction in deaths if consumption decreases.