Abstract
As colorectal cancer (CRC) is largely due to modifiable lifestyle habits, the awareness on its risk factors is highly important. Dietary fatty acids have been linked to CRC risk. We explored the association between dietary trans fatty acids (TFAs) intake and CRC risk. We analyzed 865 CRC cases (434 in colon and 404 in rectum) and 3206 controls of the IROPICAN study, with data collected by trained interviewers using validated questionnaires. TFAs intake (industrial and ruminant types) was categorized into quartiles. Multivariate logistic regression models were built to calculate the odds ratios (OR) for the association between CRC and TFAs. We observed a positive association between industrial TFAs and colon cancer (OR for highest vs lowest quartile [ORQ4vsQ1] = 1.28, 95% confidence interval 1.07–1.54). A higher association was observed between industrial TFAs and CRC, occurring after 50 years of age. In addition, elaidic acid was associated with an increased risk of colon (ORQ4vsQ1 = 1.58, 1.24–2.02) and specifically of proximal colon cancer (OR Q4vsQ1 = 2.12, 1.40–3.20), as well as of rectum cancer (ORQ4vsQ1 = 1.40, 1.07–1.83). An inverse association was observed between ruminant TFAs intake and colon cancer risk (ORQ4vsQ1 = 0.80, 0.67–0.97). Industrial TFAs, such as semisolid/solid hydrogenated oils, may increase the risk of CRC, especially colon and proximal colon cancer. In contrast, ruminant TFAs do not appear to be associated with CRC. Awareness programs and regulatory actions regarding hydrogenated oils are warranted, given their high consumption through ultra-processed foods in more developed and less developed countries.
| Original language | English |
|---|---|
| Article number | 4912 |
| Number of pages | 13 |
| Journal | Nutrients |
| Volume | 14 |
| Issue number | 22 |
| DOIs | |
| Publication status | Published - Nov 2022 |
| Publication type | A1 Journal article-refereed |
Funding
This research was supported by the National Institute for Medical Research Development (NIMAD) and Foundation for cancer research (AIRC). We thank our colleagues who provided insight and expertise that greatly assisted the research, and all of them agree with all the conclusions of this paper. The study was funded by National Institute of Medical Research Development (NIMAD) (Code: IR.NIMAD.REC.1394.027) and supported by Investigator Grant N. 24706 of Fondazione AIRC.
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
Keywords
- animal products
- colorectal cancer
- conjugated linoleic acid
- diet
- elaidic acid
- industrial fat
- trans fatty acid
Publication forum classification
- Publication forum level 1
ASJC Scopus subject areas
- Food Science
- Nutrition and Dietetics
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