Most shoppers scan labels for calories, sodium, or artificial ingredients. Far fewer think about the container.
But for many shelf-stable processed foods, the packaging itself may be part of the health story.
The risk is often in the wrapper, lining, or coating
When experts talk about processed food risk, the conversation usually centers on nutrition. That is still important, but food-contact materials have become a growing concern because chemicals can migrate from packaging, processing equipment, and coatings into food over time. The FDA says this can include substances used in packaging components, while the National Institute of Environmental Health Sciences notes that bisphenol A, or BPA, can leach from epoxy can linings and some plastic products into food.
Phthalates are drawing particular scrutiny. The FDA says ortho-phthalates are used as plasticizers to make certain plastics softer and less brittle, and in May 2026 the agency released a scientific evaluation of eight phthalates still authorized for food-contact use. That matters because these compounds are associated with endocrine-disruption concerns, and the National Institute of Environmental Health Sciences lists both phthalates and BPA among chemicals that can interfere with hormone systems.
This does not mean every canned soup, boxed meal, or packaged snack is dangerous. It does mean exposure is cumulative and often invisible. A heavily processed shelf product may spend months in contact with plastic films, adhesives, tubing, inks, can coatings, or grease-resistant barriers before it ever reaches your pantry.
Why processed and ultra-processed foods can raise exposure
The more industrial handling and packaging a product undergoes, the more opportunities there are for chemical transfer. A 2024 study indexed by PubMed found that greater ultra-processed and fast-food intake during pregnancy was linked with higher exposure to DEHP-related phthalates, with part of the disparity mediated by higher ultra-processed food consumption. That study focused on pregnant women, but it added to a wider concern that packaging and processing can become a meaningful exposure route.
A JAMA review published in 2024 also reinforced that ultra-processed foods are already linked with a broad range of health problems, including cardiometabolic and other chronic conditions. Packaging chemicals are not the sole explanation for those associations, but many researchers now argue they may be one underappreciated layer of risk sitting on top of poor nutritional quality.
Recent federal attention shows the issue is no longer fringe. In February 2024, the FDA said sales of certain PFAS used in U.S. food packaging had ended, and its 2024 PFAS update said the agency has been testing fresh and processed foods since 2019. The agency’s results so far have suggested seafood may face higher risk from environmental PFAS contamination, while the broader packaging issue remains under continuing review.
What shoppers can do without panic or guesswork
The smartest response is not fear, but exposure reduction where it is practical. Processed foods in cans, plastic trays, pouches, and grease-resistant wrappers are not equal, and regulators still maintain that some substances, including BPA at current approved uses, are considered safe at existing exposure levels. Even so, public-health agencies and researchers increasingly support the idea that lowering unnecessary contact with certain plastics and coatings is a sensible precaution.
That can mean buying more foods in glass, paper, or minimally packaged formats when possible. It can also mean reducing dependence on ultra-processed shelf items, rotating in more dried beans, grains, frozen vegetables, and foods stored in simpler materials. The CDC has also highlighted avoiding processed and fast foods as one way to lower exposure to BPA, phthalates, and related plasticizers.
Consumers should also pay attention to damaged packaging. The USDA’s Food Safety and Inspection Service warns never to use food from leaking, bulging, or badly dented cans, and notes that migration from packaging material does not always require direct contact. In other words, the overlooked risk is not only what manufacturers put into processed food, but what the package may quietly add along the way.