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Dairy product consumption and risk of cancer: A short report from the NutriNet‐Santé prospective cohort study

Abstract : The impact of dairy product consumption for long-term health remains unclear, in particular regarding their involvement in cancer etiology for frequent locations like breast or prostate. Besides, little is known about potentially different effects of dairy product subtypes. Our objective was therefore to evaluate the associations between dairy product consumption (total and subtypes) and cancer risk. A total of 101 279 participants from the French NutriNet-Santé cohort study were included (78.7% women; mean [SD] age = 42.2 [14.5] years). Dairy product consumption was assessed using validated web-based 24-hour dietary records. Multiadjusted Cox models were computed. After a median [interquartile range] follow-up time of 5.9 [2.7-8.3] years, we documented 2503 incident cancer cases (783 breast, 323 prostate and 182 colorectal cancers). Total dairy product consumption was not significantly associated with cancer. However, the consumption of “fromage blanc” (a French type of quark/cottage cheese) was associated with an increased risk of cancer overall (HR for 1 serving increment [95% CI] = 1.11 [1.01-1.21]; P-trend = .03) and of colorectal cancer (HR = 1.39 [1.09-1.77]; P-trend < .01). Besides, sugary dairy dessert consumption was directly associated with colorectal cancer risk (HR for 1 serving increment = 1.58 [1.01-2.46]; P-trend = .046]. No association was observed between the consumption of dairy products or sugary dairy desserts and the risk of prostate and breast cancers. In our study, the consumption of dairy products was not associated with the risk of overall, colorectal, breast or prostate cancers. The consumption of “fromage blanc” and sugary dairy desserts were associated to an increased risk of colorectal cancer, but this warrants further investigations.
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Submitted on : Tuesday, March 29, 2022 - 11:12:14 AM
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Mélanie Deschasaux-Tanguy, Laura Barrubés Piñol, Laury Sellem, Charlotte Debras, Bernard Srour, et al.. Dairy product consumption and risk of cancer: A short report from the NutriNet‐Santé prospective cohort study. International Journal of Cancer, Wiley, In press, ⟨10.1002/ijc.33935⟩. ⟨hal-03622713⟩



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