A new study reveals that cancer survivors who consume high amounts of ultra-processed foods face a significantly higher risk of death, even if the cause is unrelated to cancer. The research highlights the detrimental effects of these foods, emphasizing that the degree of processing plays a key role in health outcomes.
Cancer survivors who consume significant amounts of ultra-processed foods (UPFs) may face a substantially increased risk of mortality, even if the cause of death is unrelated to their cancer diagnosis. A recent study, conducted by the American Association for Cancer Research, has established a connection between the increased consumption of these largely ready-to-eat, high-sugar, high-salt, and high-additive foods, and a heightened risk of both all-cause mortality and cancer-specific mortality.
Marialaura Bonaccio, Ph.D., of the Research Unit of Epidemiology and Prevention at IRCCS Neuromed in Pozzilli, Italy, and the lead author of the study, emphasized in a press release that the dietary choices of cancer survivors can have a significant impact on their survival, yet past research has often overlooked the degree of food processing, focusing instead on nutrient composition. This research underscores the importance of considering not just what individuals eat, but also how the food they consume has been processed.\Ultra-processed foods are frequently characterized by their low essential nutrient content and the presence of various additives, artificial flavorings, preservatives, and high concentrations of added sugars and unhealthy fats. Nutritionists highlight that the body may not be equipped to process these elements effectively. Bonaccio further explained that substances used in the industrial processing of foods can interfere with metabolic processes, disrupt the gut microbiota, and promote inflammation. Even if a particular ultra-processed food has a similar calorie count and nutritional profile on paper compared to a minimally processed or 'natural' food, the impact on the body can be far more detrimental. The study findings reveal a nuanced picture, emphasizing that the negative health effects cannot be solely attributed to poor nutrient profiles. Instead, the level and nature of industrial food processing itself play an independent and significant role in influencing health outcomes, especially for cancer survivors. The study's focus on the detrimental effects of UPFs offers important insight into the importance of a well-balanced diet. \The study involved tracking more than 24,000 individuals between 2005 and 2022. Within this group, 802 cancer survivors furnished their dietary data through a questionnaire from the European Prospective Investigation into Cancer and Nutrition (EPIC). The participants, all aged 35 or older, resided in the Southern Italian region of Molise. The researchers employed the NOVA classification system, a widely recognized framework that categorizes foods based on the degree of industrial processing, to define UPFs. The team meticulously examined seven specific categories of ultra-processed items, encompassing processed meats, salty snacks, sugary sweets, and dairy products containing additives. The researchers used two metrics to measure intake: weight ratio (total weight of UPFs compared to all food consumed daily) and energy ratio (percentage of daily calories derived from UPFs). During a median follow-up period of 14.6 years, cancer survivors in the highest third of UPF consumption by weight exhibited a 48% higher rate of death from any cause and a 57% higher rate of death from cancer when compared to those in the lowest third. The study also highlighted that increased inflammation and elevated resting heart rates accounted for approximately 37% of the link between UPFs and mortality. These risks remained even after researchers accounted for adherence to a healthy Mediterranean-style diet. Bonaccio cautioned against singling out any specific food as being inherently 'bad', advocating instead for a shift towards a diet primarily composed of fresh, minimally processed, home-cooked foods. The researchers, based on these findings, suggest that cancer survivors carefully scrutinize food labels, with foods containing more than five ingredients or any industrial additives likely falling under the ultra-processed category. The study, published in the journal Cancer Epidemiology, Biomarkers & Prevention, acknowledged several limitations, including its observational nature, the reliance on self-reported dietary information, and the fact that the cohort was Italian, which may limit the generalizability of the findings
Cancer Ultra-Processed Foods Mortality Diet Cancer Survivors
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