Massive study of 460,000 people challenges ultra-processed food cancer fears
A massive study of nearly 460,000 Americans found no general link between ultra-processed foods as a whole and colorectal cancer. However, the data revealed that specific subcategories—such as processed meats versus whole-grain products—carried distinct risks.
Why it matters
Challenges broad health assumptions about ultra-processed foods, emphasizing that specific ingredients and food types matter more than the mere level of processing.
A massive study involving more than 460,000 Americans is challenging assumptions about ultra-processed foods and colorectal cancer. Researchers found that eating more ultra-processed food (UPF) was not associated with a higher overall incidence of colorectal cancer (CRC). However, the findings revealed an important distinction: Some types of ultra-processed foods were linked to lower cancer rates, while others were associated with higher rates.
The research, led by Erikka Loftfield of the National Cancer Institute and published October 15 in the open-access journal PLOS Medicine , suggests that the health effects of ultra-processed foods may depend heavily on what those foods actually contain.
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