A recent study published in JAMA Oncology reveals that consuming ultra-processed foods is linked to a higher risk of developing precancerous colorectal growths, known as adenomas, in women under 50. These findings are significant as adenomas can potentially develop into cancer, highlighting a possible factor in the rising rates of colorectal cancer among younger adults.
The research, led by Dr. Andrew Chan from Massachusetts General Brigham, analyzed data from over 29,000 women who participated in the Nurses’ Health Study II. The participants, aged between 24 and 42 at the start, were followed for 24 years. They completed dietary questionnaires every four years and underwent at least one colonoscopy before turning 50. The study found that women who consumed the most ultra-processed foods, accounting for one-third of their daily calories, were 1.5 times more likely to develop adenomas compared to those who ate the least.
Ultra-processed foods, which include items like sugary drinks, processed meats, and packaged snacks, have been linked to various health issues, including depression, Type 2 diabetes, and early death. Dr. Chan noted that these foods might alter the gut microbiome, leading to increased cancer risk. Although the study focused on women, similar links have been observed in men.
The study emphasizes the importance of understanding lifestyle factors contributing to colorectal cancer. The study’s findings underscore the need for further research to explore the causal relationship between diet and cancer risk.
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