Coffee consumption has protective, anti-cancer effects
Is it true that coffee consumption has protective, anti-cancer effects?
Yes. Current epidemiological evidence and meta-analyses generally support an inverse association between moderate coffee consumption and the risk of several cancers, such as liver, colorectal, and prostate cancer, though some specific cancer sites like the bladder may show conflicting results.
Verdict: SUPPORTED · 6 sources for, 1 against · Last checked
The vast majority of recent high-quality studies and reviews (such as meta-analyses on breast cancer, large prospective UK Biobank findings on liver cancer, and studies on colorectal and prostate cancer) support a protective, inverse relationship between coffee consumption and cancer risk. An older 1991 study reported a positive association with bladder cancer risk among men, presenting a point of contention, but the broader contemporary consensus leans toward protective effects across several major cancer types.
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M, K., S, G., R, G., MA, K., K, K., H, H., & O, A. (2026). Association Between Coffee and Caffeine Intake and Risk of Breast Cancer: A Systematic Review and Meta-Analysis of Cohort Studies.. doi.org. https://doi.org/10.1002/hsr2.72580
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Clavel, J. & Cordier, S. (1991). Coffee consumption and bladder cancer risk. doi.org. https://doi.org/10.1002/ijc.2910470208
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HS, K., MS, R., Y, W., AM, A., M, K., S, B., D, C., D, L., O, K., N, K., BM, M., KN, L., DS, K., W, A., A, K., P, M., A, V., Y, W., S, L., D, L., SC, L., S, P., & JD, Y. (2026). Coffee Consumption and Improved Liver Outcomes: Clinical, Imaging, and Proteomic Evidence From the UK Biobank.. doi.org. https://doi.org/10.1016/j.cgh.2026.04.035
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M, K., AB, P., & RB, N. (2026). Modifiable risk factors of prostate cancer: Insights from a hospital-based study.. doi.org. https://doi.org/10.18632/oncoscience.657
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E, K., M, P., F, C., M, M., A, O., H, D., J, B., WZ, K., JK, L., & J, B. (2025). Habitual Coffee Consumption and Systemic Health Outcomes: A Comprehensive Review.. doi.org. https://doi.org/10.7759/cureus.99094
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Schmit, S. L., Rennert, H. S., Rennert, G., & Gruber, S. B. (2023). Data from Coffee Consumption and the Risk of Colorectal Cancer. doi.org. https://doi.org/10.1158/1055-9965.c.6515577.v1
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Schmit, S. L., Rennert, H. S., Rennert, G., & Gruber, S. B. (2023). Data from Coffee Consumption and the Risk of Colorectal Cancer. doi.org. https://doi.org/10.1158/1055-9965.c.6515577
- Is it true that coffee consumption provides protective benefits for the liver? SUPPORTED
- Is it true that regular coffee consumption lowers blood pressure in adults? CONTESTED PARTIAL
- Is it true that coffee consumption induces feelings of sleepiness in some individuals? SUPPORTED
- Is it true that Metformin is considered a protective reagent against the development of some cancers? SUPPORTED
What does the evidence say?
The vast majority of recent high-quality studies and reviews (such as meta-analyses on breast cancer, large prospective UK Biobank findings on liver cancer, and studies on colorectal and prostate cancer) support a protective, inverse relationship between coffee consumption and cancer risk. An older 1991 study reported a positive association with bladder cancer risk among men, presenting a point of contention, but the broader contemporary consensus leans toward protective effects across several major cancer types.
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