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Ultra-processed food consumption and cancer risk: A systematic review and meta-analysis
Abstract
Background Ultra-processed foods (UPF) have become a staple of the diet in many countries, concomitant with increases in non-communicable diseases including cancer. Aim The aim of this systematic literature review was to evaluate associations between the consumption of UPF and cancer risk. Methods A systematic literature search for observational studies investigating the association between cancer risk and UPF consumption, determined by the NOVA classification system, was performed. Random-effects meta-analyses were conducted. Independent review and risk of bias assessment was performed independently by the authors using the National Institutes of Health's Study Quality Assessment Tools. Results Eleven reports were identified, including eight retrospective case-control studies and three prospective cohorts. The outcome was risk of total cancer and/or one or more of the following cancers: colorectal, breast, prostate, pancreatic, chronic lymphocytic leukemia and central nervous system tumors. Nine studies reported a significant positive association between UPF intake and all the assessed cancers except prostate, after adjustment for confounding factors including obesity and total energy intake. A 10% increment in the diet's proportion of UPF was associated with increased risk of overall cancer (HR = 1.13, 95% CI 1.07 to 1.18) and breast cancer (HR = 1.11, 95% CI 1.01 to 1.21). In addition, a high intake of UPF was associated with increased risk of colorectal cancer (OR T3 vs.…
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“Pooled analyses from seven cohort studies showed direct associations between greater exposure to ultra-processed foods and higher risks of incident cancer overall (hazard ratio 1.12, 1.06 to 1.19; class III; very low)”
From Ultra-processed food exposure and adverse health outcomes: umbrella review of epidemiological meta-analyses (2024) · cites this paper as [41]
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“we considered the overall confidence in the results of seven meta-analysis studies to be low owing to lack of clarity as to whether the review methods were established before the conduct of the review (AMSTAR critical item 2)”
From Ultra-processed food exposure and adverse health outcomes: umbrella review of epidemiological meta-analyses (2024) · cites this paper as [41]
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Lane, M. M., Gamage, E., Du, S., Ashtree, D. N., McGuinness, A. J., Gauci, S., Baker, P., Lawrence, M., Rebholz, C. M., Srour, B., et al. (2024) · BMJ · doi:10.1136/bmj-2023-077310 · Cited by 1,153
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Metadata
- Authors
- Isaksen, I. M., & Dankel, S. N.
- ORCID
- Dankel, Simon Nitter
- Venue
- Clinical Nutrition
- Publisher
- Elsevier BV
- Published
- 2023-06
- Volume
- 42
- Issue
- 6
- Pages
- 919-928
- ISSN
- 0261-5614
- Cited by
- 159
- References
- 6
- Language
- en
- Licence
- Funders
- Trond Mohn stiftelse
- Universitetet i Bergen
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