Based on what you know, how would you describe the overall health impact of regularly consuming ultra-processed foods?

Background

Ultra-processed foods — industrially manufactured products typically containing additives like emulsifiers, flavors, and sweeteners not found in home kitchens — have become a central topic in American health policy. According to the FDA, an estimated 70 percent of the U.S. food supply is made up of foods commonly considered ultra-processed, and children get over 60 percent of their calories from such products. A major three-paper series published in The Lancet in November 2025 by 43 international experts found that ultra-processed food consumption is linked to poorer diet quality and higher risks of multiple chronic diseases. In response, the FDA and USDA issued a joint Request for Information in July 2025 to develop the first federally recognized uniform definition of ultra-processed foods, and the 2025–2030 Dietary Guidelines for Americans addressed highly processed foods for the first time. Meanwhile, states like California have enacted laws that will restrict ultra-processed foods in schools, and federal agencies are investing in new research through the NIH-FDA Nutrition Regulatory Science Program.

Those who favor stricter action point to a growing body of evidence. The Lancet series reviewed more than 100 large observational studies and found that 92 showed associations between ultra-processed food consumption and at least one chronic disease outcome, including obesity, cardiovascular disease, Type 2 diabetes, and depression. A study published in JAMA Oncology linked higher ultra-processed food intake among younger women to increased colorectal cancer risk. On the other side, critics — including the International Food and Beverage Alliance and some nutrition scientists — argue that the concept of ultra-processed food lacks a consensus definition and that the observed health harms may stem from poor nutritional composition rather than processing itself. As University of Reading professor Gunter Kuhnle told C&EN, the key question is whether processing adds risk beyond what excess salt, fat, and sugar already cause. Industry groups also caution that an overly broad definition could discourage consumption of nutrient-rich processed foods like yogurt and fortified whole grains.

The stakes are significant. The American College of Cardiology notes that poor dietary habits are a critical determinant of cardiovascular health and a major modifiable risk factor. Lower-income communities may be disproportionately affected, as ultra-processed foods tend to be cheaper and more accessible than fresh alternatives, potentially deepening existing health disparities. How policymakers define and regulate these foods could reshape school nutrition programs, food labeling, marketing practices, and federal nutrition assistance — affecting virtually every American household. Whether the emphasis falls on restricting certain products, improving food formulations, or expanding access to whole foods, the decisions ahead will shape the nation's approach to diet-related chronic disease for years to come.