Study of 460,000 people finds no overall link between ultra-processed foods and colorectal cancer
A large study involving more than 460,000 Americans has challenged the assumption that ultra-processed foods uniformly increase colorectal cancer risk. Researchers found no association between overall ultra-processed food consumption and colorectal cancer incidence in the study population.
The relationship differed according to the type of food. Processed meat was associated with higher cancer incidence, while ultra-processed whole grains and dairy products were associated with lower incidence. These category-specific findings suggest that broad labels such as “ultra-processed” may obscure important differences among foods and diets.
The study does not mean that all processed foods carry the same risk. Its results point to a more varied relationship between food processing, dietary patterns, and colorectal cancer than a single overall association can capture.