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Original Article
- Fraction of cancer incidence and mortality attributable to dietary factors in Korea from 2015 to 2030
- Hyun Jeong Cho, Jin Young Yoo, Ga-Eun Yie, An Na Kim, Soseul Sung, Sungji Moon, Youjin Hong, Sangjun Lee, Inah Kim, Kwang-Pil Ko, Sun-Seog Kweon, Jung Eun Lee, Sue K. Park
- Epidemiol Health. 2025;47:e2025065. Published online December 8, 2025
- DOI: https://doi.org/10.4178/epih.e2025065
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AbstractOBJECTIVES
Dietary factors play an important role in modifying cancer risk. This study aimed to assess the proportion of cancer incidence and mortality in Korea attributable to dietary factors from 2015 to 2030.METHODSWe estimated the population-attributable fraction (PAF) of cancer incidence and mortality using dietary intake levels, exposure rates, and relative risks (RRs). Intake and exposure rates were derived from the Korean National Health and Nutrition Examination Survey, assuming a 15-year latency. RRs were obtained from meta-analyses of Korean cohort and case- control studies.RESULTSIn 2020, 6.08% of cancer cases and 5.70% of deaths in Korea were attributable to dietary factors. High salted vegetable intake (2.12% for incidence and 1.78% for deaths) and low intake of non-starchy vegetables and fruits (1.92 and 2.34%, respectively) were major contributors. However, high intakes of red meat and processed meat showed low PAFs, each less than 1%. The projected PAF for cancer attributable to high salted vegetable intake is expected to decrease substantially to 1.17% in 2030. In contrast, the PAF linked to low intake of non-starchy vegetables and fruits is projected to remain relatively stable.CONCLUSIONSOur findings provide evidence that dietary factors make a substantial contribution to cancer incidence and mortality in Korea. This study highlights that reducing salted vegetable intake and encouraging a diet rich in non-starchy vegetables and fruits may support cancer prevention efforts. Continuous monitoring of dietary trends remains crucial for reducing the cancer burden. -
SummaryKorean summary
2020년 기준으로 식이 요인은 암 발생과 사망의 일정 비율을 차지하였으며, 여러 식이 요인 중에서는 염장채소의 높은 섭취와 비전분 채소 및 과일의 낮은 섭취가 상대적으로 높은 기여를 보였다. 이러한 결과는 식이 요인별 암 부담의 차이를 이해하고, 향후 식이 섭취 양상에 대한 지속적인 관찰과 공중보건적 검토의 필요성을 시사한다.Key Message
In 2020, dietary factors accounted for a proportion of the cancer burden, with high intake of salted vegetables and low intake of non-starchy vegetables and fruits showing the largest contributions among dietary factors examined. These findings suggest the need for continued assessment of dietary patterns and their potential relevance in public health discussions on cancer prevention.
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