Cohort study2025Open access

Dietary nitrosyl-heme from processed meats and its association with colorectal cancer risk: findings from the EPIC cohort study

Rizzolo-Brime L, Lujan-Barroso L, Farran-Codina A, Bou R, Nicolas G, Huybrechts I, Lasheras C, Montes EM, Colorado-Yohar S, Gasque A, Dahm CC, Bock N, Olsen A, Tjønneland A, Katzke V, le Cornet C, Schulze MB, Saieva C, Sieri S, De Magistris MS, Tumino R, Macciotta A, Wareham N, Weiderpass E, Chatziioannou C, Vineis P, Jakszyn P

Nutrition journal · 1 citation

Review labels

Food frequency questionnaireNo stated lifestyle adjustment

Neutral facts our review recorded about how this study was done. They describe method, never whether we like the result.

How it was studied

Design
Cohort study (indexed by PubMed)
Studied in
People
Main outcome
Clinical events such as disease or death
Intake measured by
Food frequency questionnaire

Who paid for it

Funding
Independent funding
Government
World Health Organization
Government
Agence Nationale de la Recherche
Government
Instituto de Salud Carlos III
Grants
Instituto de Salud Carlos III (FI20/00006); Agence Nationale de la Recherche (ANR-10-COHO-0006); Instituto de Salud Carlos III (PI19/00817)

Based on 3 listed funder(s) and full-text disclosure statement.

Publication

Published
2025-12-20 · Nutr J · vol. 25 · issue 1 · p. 14
Publisher
BioMed Central
Cited
1 citation · more than 72% of similar papers · 0.5× the field average
References
23 works
Access
Open access (journal) · CC-BY-NC-ND
Research areas
Potato Plant Research · Water Treatment and Disinfection · Nitric Oxide and Endothelin Effects
Keywords
Colorectal cancer, Clinical nutrition, EPIC, European Prospective Investigation into Cancer and Nutrition, Cohort study, Association (psychology), Confounding, Cohort
MeSH
humans, colorectal neoplasms, nitrites, nitroso compounds, heme, diet, proportional hazards models, risk factors, prospective studies, meat products, adult, aged, middle aged, europe, female, male

27 authors

From ES, FR, CO, DK, DE, IT, GB

  • Lucía Rizzolo-BrimeBellvitge University Hospital; Institut d'Investigació Biomédica de Bellvitge; Institut Català d'Oncologia
  • Leila Luján‐BarrosoBellvitge University Hospital; Institut d'Investigació Biomédica de Bellvitge; Ajuntament de L’Hospitalet; Institut Català d'Oncologia
  • Andreu Farrán-CodinaUniversitat de Barcelona
  • Ricard BouInstitute of Agrifood Research and Technology
  • Geneviève NicolasCentre international de recherche sur le cancer
  • Inge HuybrechtsCentre international de recherche sur le cancer

Abstract

Background

Processed meat (PM) consumption is an established risk factor for colorectal cancer (CRC). It has been hypothesized that nitrosyl-heme, formed by the addition of nitrites during meat processing, may enhance the carcinogenic effects of PMs. This study aims to investigate the association between nitrosyl-heme intake and CRC risk within the European Prospective Investigation into Cancer and Nutrition(EPIC) study.

Methods

This prospective study included 367,463 participants(70.3% women) from seven countries from the EPIC-study. Dietary data were collected via baseline questionnaires, and nitrosyl-heme exposure was estimated using biochemical data from 52 Spanish PMs, extrapolated to country-specific items. Sex-specific multivariable-adjusted hazard ratios(HRs) and 95% confidence intervals(CIs) were calculated using Cox proportional hazards models.

Results

Over a 15-year median follow-up, 5,115 incident CRC cases were identified. Comparing the highest vs. the lowest sex-specific tertile of nitrosyl-heme intake we found no significant association with CRC risk (HRT3vsT1:1.01;95%CI:0.93-1.09). Subgroup analyses by tumor subtype and interactions with lifestyle factors also showed no associations.

Conclusions

This study offers insights into nitrosyl-heme exposure in European populations but found no link to CRC risk. Further research is needed to understand nitrosyl-heme's role in CRC.

Abstract via Europe PMC. Copyright remains with the authors or publisher (CC BY-NC-ND).

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