Rising Bowel Cancer in Younger Adults Linked to Ultra-Processed Foods, Study Suggests
A new study published in the journal Jama Oncology has found that women under 50 who consume a high intake of ultra-processed foods may be at greater risk of developing abnormal growths in their bowel, which can lead to cancer. The research, led by Dr Andrew Chan from Massachusetts General Hospital, used data from the US-based Nurses' Health Study II to investigate the relationship between ultra-processed food consumption and bowel polyps.
Ultra-processed foods, typically defined as industrially produced products with little whole foods, fibre, vitamins, and high levels of saturated fat, sugar, salt, and additives, have been linked to various health problems in previous studies. The researchers aimed to understand what was driving the rising rates of bowel cancer in younger people and found that women who consumed more ultra-processed foods had a higher risk of developing conventional adenomas, a type of polyp that can lead to cancer.
The study divided 29,105 participants into five groups based on their UPF consumption, with those eating the most UPFs having a 45% greater risk of developing early-onset conventional adenomas. However, there was no associated risk of developing serrated lesions.
While the study has limitations, including reliance on participants' recall of food and lack of direct measurement of cancer risk, researchers propose several plausible mechanisms that could explain the findings, such as metabolic disorders linked to obesity and type 2 diabetes, or the promotion of chronic inflammation and changes in gut microbes.
The study's lead author emphasized that it does not suggest a causal link between UPF consumption and bowel cancer development but rather offers a piece of the puzzle in understanding underlying factors. Cancer experts agree that policy-level changes are needed to make healthier diets more accessible for everyone, highlighting the importance of overall diet on cancer risk.
As the rates of bowel cancer among younger adults continue to rise, this study provides valuable insights into the potential link between ultra-processed foods and early changes in the bowel. Further research is needed to confirm these findings, but the results underscore the need for healthier diets and lifestyle choices to reduce the risk of chronic diseases.
A new study published in the journal Jama Oncology has found that women under 50 who consume a high intake of ultra-processed foods may be at greater risk of developing abnormal growths in their bowel, which can lead to cancer. The research, led by Dr Andrew Chan from Massachusetts General Hospital, used data from the US-based Nurses' Health Study II to investigate the relationship between ultra-processed food consumption and bowel polyps.
Ultra-processed foods, typically defined as industrially produced products with little whole foods, fibre, vitamins, and high levels of saturated fat, sugar, salt, and additives, have been linked to various health problems in previous studies. The researchers aimed to understand what was driving the rising rates of bowel cancer in younger people and found that women who consumed more ultra-processed foods had a higher risk of developing conventional adenomas, a type of polyp that can lead to cancer.
The study divided 29,105 participants into five groups based on their UPF consumption, with those eating the most UPFs having a 45% greater risk of developing early-onset conventional adenomas. However, there was no associated risk of developing serrated lesions.
While the study has limitations, including reliance on participants' recall of food and lack of direct measurement of cancer risk, researchers propose several plausible mechanisms that could explain the findings, such as metabolic disorders linked to obesity and type 2 diabetes, or the promotion of chronic inflammation and changes in gut microbes.
The study's lead author emphasized that it does not suggest a causal link between UPF consumption and bowel cancer development but rather offers a piece of the puzzle in understanding underlying factors. Cancer experts agree that policy-level changes are needed to make healthier diets more accessible for everyone, highlighting the importance of overall diet on cancer risk.
As the rates of bowel cancer among younger adults continue to rise, this study provides valuable insights into the potential link between ultra-processed foods and early changes in the bowel. Further research is needed to confirm these findings, but the results underscore the need for healthier diets and lifestyle choices to reduce the risk of chronic diseases.