Does eating ultra-processed foods increase cancer risk?

Everyone has heard of “processed foods”. But now they talk about “ultra-processed” foods. When teaching nutrition we did talk about why processed foods can be unhealthy but only recently has the term “ultra-processed” foods come into vogue. In a previous blog post, Should You Avoid Ultraprocessed Food? , I noted that some of my students say that to eat healthy one should avoid “processed food”. What they did not seem to understand is that most of the food we eat is processed to some extent. Whole wheat bread is a healthy choice but bread is a “processed food”. They harvest the grain, mill the grain, make the flour and then make the bread. Cereal, canned vegetables, frozen vegetables, 100% juice – all are processed to some extent. But now there is “ultraprocessed food”. These foods are not only highly processed but often contain a lot of added sugar, salt and fat as well as preservatives and many have artificial coloring ad...