Scientists May Have Found One Shocking Explanation for the Rise In Colorectal Cancer
Women's Health
February 13, 2026
AI-Generated Deep Dive Summary
A recent study published in *JAMA Oncology* has uncovered a potential link between increased consumption of ultra-processed foods and rising rates of colorectal cancer, particularly among younger adults. The research analyzed data from over 29,000 women under 50 participating in the Nurses’ Health Study and found that those who ate the most ultra-processed foods—about 10 servings daily—had a 45% higher risk of developing precancerous colorectal polyps compared to those eating three or fewer servings. While the study didn’t prove causation, it highlights a concerning trend: as these foods become more common in Western diets, so too does the incidence of early-onset colorectal cancer.
The connection between ultra-processed foods and health risks isn’t new. These foods, often loaded with artificial additives, preservatives, and unhealthy ingredients, are linked to conditions like obesity, heart disease, and now potentially colorectal cancer. Experts suggest that diets high in ultra-processed foods may disrupt gut microbiome balance, trigger inflammation, and reduce intake of nutrient-rich whole foods like fruits, vegetables, and whole grains—all factors tied to cancer development.
Reducing ultra-processed food consumption isn’t just about avoiding cancer; it’s a broader strategy for overall health. Experts recommend replacing these items with whole, unprocessed foods and adopting an active lifestyle. While completely eliminating ultra-processed foods can be challenging given their prevalence in modern diets, even small reductions may lower cancer risk. This shift not only supports gut health but also addresses rising concerns about early-onset colorectal cancer, which has been increasing among younger populations.
For readers focused on health, this study underscores the importance of diet as a key preventable factor in chronic disease. While more research is needed to fully understand the mechanisms behind this link, the evidence suggests that prioritizing whole foods and minimizing processed items could be a critical step toward reducing cancer risk and improving overall well-being.
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Originally published on Women's Health on 2/13/2026