Weight management

Suggested

3 studies · 1 recommendation

Last updated: February 25, 2026

Suggested3 studies

Maintaining healthy body weight substantially lowers kidney cancer risk across the lifespan

Three studies encompassing over 289,000 participants and more than 1,000 epidemiologic analyses consistently link excess body fat to increased kidney cancer risk. A UK Biobank cohort study of 288,802 adults found each 1-point improvement in cancer prevention adherence — including weight management — reduced kidney cancer risk by 17% (HR 0.83; 95% CI 0.76–0.90). The IARC working group confirmed sufficient evidence that avoiding weight gain prevents renal-cell carcinoma, with the highest BMI category carrying an 80% elevated risk versus normal weight (RR 1.8; 95% CI 1.7–1.9) and a significant dose-response relationship. A systematic review of 30 studies further identified childhood and adolescent obesity as a modifiable risk factor for adult renal malignancy, with strong evidence in males. Weight control from early life onward represents one of the most impactful modifiable strategies against kidney cancer.

Evidence

Abbreviated Score to Assess Adherence to the 2018 WCRF/AICR Cancer Prevention Recommendations and Risk of Cancer in the UK Biobank

Authors: Celis-Morales C, Ho FK, Malcomson FC, Mathers JC, Parra-Soto S, Sharp L

Published: January 9, 2024

Among 288,802 UK Biobank participants (mean age 56.2 years, cancer-free at baseline) followed for a median of 8.2 years, each 1-point increment in the abbreviated WCRF/AICR adherence score was associated with a 17% lower kidney cancer risk (HR 0.83; 95% CI 0.76–0.90). The score incorporated body weight, physical activity, fruit/vegetable/fiber intake, red and processed meat limitation, and alcohol restriction (range 0–5 points). A total of 23,448 cancer cases occurred during follow-up. Multivariable Cox proportional hazards models adjusted for confounders.

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Body fatness and cancer - viewpoint of the IARC working group

Authors: Anderson, Annie S., Baker, Jennifer L., Bianchini, Franca, Breda, João, Byers, Tim, Clearly, Margot P., Colditz, Graham, Di Cesare, Mariachiara, Gapstur, Susan M., Grosse, Yann, Gunter, Marc, Herbert, Ronald A., Hursting, Stephen D., Kaaks, Rudolf, Lauby-Secretan, Béatrice, Leitzmann, Michael, Ligibel, Jennifer, Loomis, Dana, Renehan, Andrew, Romieu, Isabelle, Scoccianti, Chiara, Shimokawa, Isao, Straif, Kurt, Thompson, Henry J., Ulrich, Cornelia M., Wade, Katlin, Weiderpass, Elisabete

Published: August 24, 2016

The IARC working group reaffirmed sufficient evidence for a cancer-preventive effect of avoidance of weight gain on renal-cell kidney cancer, consistent with the 2002 evaluation. The relative risk for the highest BMI category versus normal BMI was 1.8 (95% CI, 1.7–1.9), representing one of the stronger associations among all cancer sites evaluated. A significant positive dose-response relationship between BMI and kidney cancer risk was reported. Results based on waist circumference were generally consistent with those reported for BMI. The review encompassed over 1000 epidemiologic studies, predominantly observational, with most providing risk estimates for adult BMI relative to a reference range of 18.5 to 24.9.

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A systematic review of the link between childhood obesity and adult cancers

Authors: Schumacher, Makaila A.

Published: March 30, 2016

A systematic review screened 658 articles from PubMed and CINAHL, selecting 30 peer-reviewed studies published within the preceding 10 years for final analysis. Strong evidence supported a positive association between childhood and adolescent obesity and renal cell carcinoma in males. Additional limited evidence suggested a positive association between childhood obesity and kidney cancer in both males and females across the reviewed literature. The findings identify childhood weight status as a modifiable risk factor for adult renal malignancy.

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