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the claim

Soft drinks cause cancer

the verdict
CONTESTED
contested - the weight sits with the supporting side
Recorded sources
3 sources for · 2 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 soft drinks cause cancer?

Partly. The evidence regarding soft drinks and cancer is mixed; while some large cohort studies link high sugar-sweetened beverage intake to elevated risks of specific cancers such as liver, pancreatic, and oral cavity cancer, other studies and meta-analyses find no significant association with cancers like colorectal or overall gastrointestinal cancer.

Verdict: CONTESTED · 3 sources for, 2 against · Last checked

The analysis

The retrieved literature contains conflicting findings. Papers [0], [2], and [4] provide evidence supporting an association between sugar-sweetened beverages and certain cancers (liver, pancreatic, and oral cavity), while papers [1] and [3] report no significant associations with colorectal or gastrointestinal cancers. Because the evidence points in different directions depending on the specific type of cancer and beverage studied, the verdict is CONTESTED.

The evidence we hold leans leans supported

How this was weighed

official record 3x · fact-check 2x · hedged 1x · crowd & reference 1x

  • Sugar-Sweetened and Artificially Sweetened Beverages and Ris · peer-reviewed · supports · weight 1.6 · 2023
  • “Sugar-Sweetened Beverages” Is an Independent Risk From Panc · peer-reviewed · supports · weight 1.3 · 2022
  • High Sugar-Sweetened Beverage Intake and Oral Cavity Cancer · peer-reviewed · supports · weight 1.05 · 2025
  • Sugar-sweetened beverages and colorectal cancer risk in the · peer-reviewed · refutes · weight 1.3 · 2019
  • Consumption of artificially sweetened soft drinks and risk o · peer-reviewed · refutes · weight 1.3 · 2021
Evidence for · 3
Sugar-Sweetened and Artificially Sweetened Beverages and Risk of Liver Cancer and Chronic Liver Disease Mortality.
2023
This prospective cohort study found that high consumption of sugar-sweetened beverages was associated with an increased incidence of liver cancer and chronic liver disease mortality.
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Zhao, L., Zhang, X., Coday, M., Garcia, D. O., Li, X., Mossavar-Rahmani, Y., Naughton, M., Lopez-Pentecost, M., Saquib, N., Shadyab, A., Simon, M., Snetselaar, L., Tabung, F., Tobias, D. K., VoPham, T., McGlynn, K., Sesso, H., Giovannucci, E., Manson, J., Hu, F., Tinker, L., & Zhang, X. (2023). Sugar-Sweetened and Artificially Sweetened Beverages and Risk of Liver Cancer and Chronic Liver Disease Mortality.. doi.org. https://doi.org/10.1001/jama.2023.12618

Evidence against · 2
Sugar-sweetened beverages and colorectal cancer risk in the California Teachers Study
2019
This longitudinal study found that sugar-sweetened beverages were not significantly associated with colorectal cancer risk.
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Pacheco, L. S., Anderson, C., Lacey, J., Giovannucci, E., Lemus, H., Araneta, M., Sears, D. D., Talavera, G., & Martínez, M. (2019). Sugar-sweetened beverages and colorectal cancer risk in the California Teachers Study. doi.org. https://doi.org/10.1371/journal.pone.0223638

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More for · 2
“Sugar-Sweetened Beverages” Is an Independent Risk From Pancreatic Cancer: Based on Half a Million Asian Cohort Followed for 25 Years
2022
This study reported a dose-response relationship between frequent drinking of sugar-sweetened beverages and an increased risk of pancreatic cancer mortality.
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Chen, C., Tsai, M., Lee, J., Lin, R., Hsu, C. Y., Wen, C., Wu, X., Chu, T., & Wen, C. (2022). “Sugar-Sweetened Beverages” Is an Independent Risk From Pancreatic Cancer: Based on Half a Million Asian Cohort Followed for 25 Years. doi.org. https://doi.org/10.3389/fonc.2022.835901

High Sugar-Sweetened Beverage Intake and Oral Cavity Cancer in Smoking and Nonsmoking Women.
2025
This longitudinal cohort study found that high sugar-sweetened beverage intake was associated with a significantly increased risk of oral cavity women's cancer.
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L, G., KL, C., M, U., A, N., Z, R., R, F., N, F., E, M., T, R., HR, H., & B, B. (2025). High Sugar-Sweetened Beverage Intake and Oral Cavity Cancer in Smoking and Nonsmoking Women.. doi.org. https://doi.org/10.1001/jamaoto.2024.5252

More against · 1
Consumption of artificially sweetened soft drinks and risk of gastrointestinal cancer: a meta-analysis of observational studies.
2021
This meta-analysis of observational studies concluded that overall, there is no significant association between the consumption of artificially sweetened soft drinks and gastrointestinal cancer risk.
Get citation
A, J., JM, C., & SK, M. (2021). Consumption of artificially sweetened soft drinks and risk of gastrointestinal cancer: a meta-analysis of observational studies.. doi.org. https://doi.org/10.1017/s136898002100104x

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Receipt History
first checked04 Aug 2026
judged → CONTESTED · 4204 Aug 2026
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