Study links ultraprocessed foods to precancerous polyps in younger women

This observational study found a modest link between high ultraprocessed food intake and conventional adenomas before age 50, but it cannot prove cause and effect. The association was not seen for serrated lesions (the other symptom for pre-cancer stages). The risk pattern was non-linear across intake groups, and the participants (female nurses who ate less ultraprocessed food than the U.S. average) may not represent the general public — larger, more diverse studies are needed.