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the claim

Eating processed deli meat increases the risk of colorectal cancer.

the verdict
INSUFFICIENT LEANING
Recorded sources
8 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that eating processed deli meat increases the risk of colorectal cancer?

Unclear. Multiple observational studies and reviews associate processed meat intake with increased colorectal cancer risk, with some reporting dose-dependent increases, but the evidence is epidemiological and does not establish causation.

Verdict: PARTIAL LEAN · 8 sources for, 0 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 8
Colorectal cancer
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Colorectal cancer. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Colorectal_cancer

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More for · 7
Does eating meat increase your risk for cancer?
2011
Get citation
Does eating meat increase your risk for cancer?. (2011). skeptics.stackexchange.com. https://skeptics.stackexchange.com/questions/7188/does-eating-meat-increase-your-risk-for-cancer

Is eating processed meat as bad as smoking for causing cancer?
2017
Get citation
Is eating processed meat as bad as smoking for causing cancer?. (2017). skeptics.stackexchange.com. https://skeptics.stackexchange.com/questions/38533/is-eating-processed-meat-as-bad-as-smoking-for-causing-cancer

Red and Processed Meat Intake, Polygenic Risk Score, and Colorectal Cancer Risk
2022
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Chen, X., Hoffmeister, M., & Brenner, H. (2022). Red and Processed Meat Intake, Polygenic Risk Score, and Colorectal Cancer Risk. doi.org. https://doi.org/10.3390/nu14051077

Red meat and processed meat intake and risk of colorectal cancer: a population-based case–control study
2019
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Saliba, W., Rennert, H. S., Gronich, N., Gruber, S. B., & Rennert, G. (2019). Red meat and processed meat intake and risk of colorectal cancer: a population-based case–control study. doi.org. https://doi.org/10.1097/cej.0000000000000451

Nutrition, Processed Meat, and the Rising Incidence of Colorectal Cancer: A Review of Risk and Carcinogenic Mechanisms
2026
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Alavi, H. (2026). Nutrition, Processed Meat, and the Rising Incidence of Colorectal Cancer: A Review of Risk and Carcinogenic Mechanisms. doi.org. https://doi.org/10.2139/ssrn.6958702

Processed meat and colorectal cancer: a review of epidemiologic and experimental evidence -
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Processed meat and colorectal cancer: a review of epidemiologic and experimental evidence - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://doi.org/10.1080/01635580701684872

Burden of colon and rectum cancer attributable to processed meat consumption in China, 1990-2021.
2025
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Z, Z., X, C., J, Z., J, X., S, Z., Z, G., & B, C. (2025). Burden of colon and rectum cancer attributable to processed meat consumption in China, 1990-2021.. doi.org. https://doi.org/10.3389/fnut.2025.1488077

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