Weight management

Suggested

3 studies · 1 recommendation

Last updated: February 25, 2026

Suggested3 studies

Maintaining healthy body weight reduces pancreatic cancer risk by 14–50%

Three studies spanning over 340,000 participants link excess body fat to elevated pancreatic cancer risk. The IARC Working Group classified pancreatic cancer among sites with sufficient evidence that avoiding excess body fatness lowers risk, reporting pooled relative risks of 1.5 (95% CI, 1.2–1.8) for the highest BMI category versus normal weight, with a clear dose-response relationship. In the UK Biobank cohort (288,802 participants, median 8.2-year follow-up), each 1-point increase in a cancer prevention adherence score covering body weight, physical activity, diet, and alcohol corresponded to a 14% risk reduction (HR 0.86; 95% CI 0.79–0.94). Among 51,251 Singapore Chinese participants, those with BMI ≥27.5 kg/m² showed an elevated risk trend (HR 1.75, 95% CI 0.93–3.3). Weight control through balanced energy intake and regular physical activity represents a modifiable strategy for pancreatic cancer risk reduction.

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

In a prospective cohort of 288,802 UK Biobank participants (mean age 56.2 years) followed for a median of 8.2 years (IQR 7.4–8.9), the abbreviated WCRF/AICR adherence score showed a significant inverse association with pancreatic cancer. Each 1-point increment in the score (range 0–5, covering body weight, physical activity, diet, and alcohol) was associated with a 14% risk reduction (HR 0.86; 95% CI 0.79–0.94). During follow-up, 23,448 participants developed cancer. 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 Handbook Working Group classified pancreatic cancer as one of eight newly identified cancer sites with sufficient evidence that absence of excess body fatness lowers cancer risk, a new addition since the 2002 evaluation. Relative risks from meta-analyses or pooled analyses ranged from 1.2 to 1.5 for overweight and 1.5 to 1.8 for obesity, with a pooled relative risk of 1.5 (95% CI, 1.2–1.8) for the highest BMI category versus normal BMI. A significant positive dose-response relationship between BMI and pancreatic cancer risk was documented. Body fatness and weight gain throughout the life course are largely determined by modifiable risk factors including excess energy intake and physical inactivity.

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Body mass index and risk of pancreatic cancer in a Chinese population

Authors: A Berrington de Gonzalez, A Seow, A Seow, AA Arsian, Ai Zhen Jin, Andrew O. Odegaard, AO Odegaard, AR Hart, AV Patel, C Samanic, C Samanic, CA Conover, Consultation WHO Expert, D Albanes, DM Parkin, DS Michaud, E Giovannucci, EE Calle, J Luo, J Luo, J Ma, JE Manson, JH Hankin, Jian-Min Yuan, K Wada, KA Perkins, Kristin E. Anderson, L Jiao, LN Jiao Anderson, M Wang, P Deurenberg, R Durazo-Arizu, R LinY, Fu, RC Klesges, RJ Kuczmarski, RJ Stevens, RZ Stolzenberg-Solomon, RZ Stolzenberg-Solomon, RZ Stolzenberg-Solomon, S Connor Gorber, S Iodice, SC Larsson, SC Larsson, Seema Untawale, SH Jee, SO Olusi, Suminori Akiba, U Nothlings, WH Tsong, Woon-Puay Koh, WP Koh, XH Lu, Y Lin

Published: January 1, 2014

In the Singapore Chinese Health Study cohort (51,251 participants, median follow-up approximately 14 years), never smokers with BMI ≥27.5 kg/m² showed a suggestive increased pancreatic cancer risk after excluding the first three years of follow-up (HR = 1.75, 95% CI = 0.93–3.3) compared to those with BMI 21.5–24.4 kg/m². The WHO Asian BMI cut points were applied, classifying ≥27.5 kg/m² as obese for Asian populations. While not statistically significant, the direction and magnitude of association align with findings from Western cohort studies showing elevated pancreatic cancer risk with obesity.

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