When the headlines scream that ultraprocessed food is killing us, the science tells a more complicated story. A team of European nutrition scientists is now urging policymakers to look more carefully at what the evidence actually shows—and their message, surprisingly, is one of nuance rather than alarm.
Researchers from the University of Liverpool, the University of Copenhagen, and Wageningen University in the Netherlands have published a perspective in the journal Science that examines five clinical trials conducted across the United States, United Kingdom, Denmark, and Japan. Their conclusion: the current evidence does not support the widespread claim that ultraprocessing itself—the industrial processes used to manufacture foods—is inherently harmful to health.
Professor Eric Robinson of the University of Liverpool put it plainly: "Collectively, available randomized controlled trials provide weak support for an ultraprocessing-specific effect of UPFs on body weight regulation and cardiometabolic function that is independent of established nutritional determinants."
In other words, when researchers observe negative health outcomes, the culprit appears to be measurable nutritional factors—not the fact that a food went through a factory. These factors include soft textures that encourage faster eating, high calorie density, elevated levels of saturated fat and salt, and low fiber or protein content. A handful of almonds and a handful of potato chips, the authors note, may share a similar degree of processing while having vastly different nutritional profiles.
The researchers also point out that the ultraprocessed food category is far from uniform. It encompasses products ranging from clearly nutritionally poor choices to fortified cereals and other foods that may actually contribute positively to diet quality. The current broad-brush approach, they argue, obscures these important distinctions.
What does this mean for public health guidance? The authors recommend shifting focus away from how processed a food appears on a label and toward concrete nutritional attributes: calorie density, saturated fat content, fiber levels, and eating pace. Rather than adding to consumer confusion, this approach offers clearer, more actionable advice based on what nutrition science has long identified as the meaningful drivers of health outcomes.
The perspective does not dismiss concerns about processed foods entirely. Instead, it calls for precision in how those concerns are communicated—precision that could ultimately lead to better-targeted policies and better-informed choices for the public.