Introduction and Objective:
Breast cancer is the most frequently diagnosed malignant neoplasm among women in Poland and worldwide. It is believed that increasing nutritional awareness in this population can significantly reduce the risk of this disease. In addition, the role of nutritional factors is increasingly the subject of extensive epidemiological, observational and clinical studies in this field. Therefore, the aim of this article was to present the current state of knowledge on the impact of selected groups of food products on the risk of developing breast cancer.

Review Methods:
In the process of systematic review sources of medical information were searched in order to identify secondary evidence. Systematic reviews and meta-analyses dated May 1st, 2008 as the cut-off date, present in PubMed, Scopus, Cochrane Library were included. The following key words were included in the recognition/research strategy: breast cancer, risk factors and food groups.

Brief description of the state of knowledge:
The review of the literature shows that a diet is one of the factors influencing the risk of breast cancer incidence. Red and processed meat, sweets and pastries, as well as animal derived fats can be recalled as products having potential carcinogenic action. Fresh fruits and vegetables, legumes, nuts, (whole) grain products and foods rich in omega-3 fatty acids may have a protective effect against cancer.

Nutrition is one of the environmental factors that can lead to breast cancer formation. Data presented in the article can be useful in everyday clinical practice as well as in direct nutritional care of an oncological patient. Moreover, this evidence can be used to update the nutritional recommendations for breast cancer prevention.

The study was carried out as part of the Young Researcher 10/Z/MBM/N/21 Project financed by a subsidy allocated to science obtained by the Medical University of Warsaw.
Bray F, Ferlay J, Soerjomataram I, et al. Global cancer statistics 2018: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries. CA Cancer J Clin. 2018;68(6):394–424.
Malczyk E, Majkrzak Ż. Żywieniowe czynniki ryzyka rozwoju raka piersi. PHiE 2015;96(1):67–76.
Kotepui M. Diet and risk of breast cancer. Contemp Oncol (Pozn). 2016;20(1):13–19.
Wu J, Zeng R, Huang J, et al. Dietary Protein Sources and Incidence of Breast Cancer: A Dose-Response Meta-Analysis of Prospective Studies. Nutrients. 2016;8(11):730.
Wiseman M. The second World Cancer Research Fund/American Institute for Cancer Research expert report. Food, nutrition, physical activity, and the prevention of cancer: a global perspective. Proc Nutr Soc. 2008;67(3):253–256.
Diallo A, Deschasaux M, Latino-Martel P, et al. Red and processed meat intake and cancer risk: Results from the prospective NutriNet-Santé cohort study. Int J Cancer. 2018;142(2):230–237.
Kazemi A, Barati-Boldaji R, Soltani S, et al. Intake of Various Food Groups and Risk of Breast Cancer: A Systematic Review and Dose-Response Meta-Analysis of Prospective Studies. Adv Nutr. 2021;12(3):809–849.
Ubago-Guisado E, Rodríguez-Barranco M, Ching-López A, et al. Evidence Update on the Relationship between Diet and the Most Common Cancers from the European Prospective Investigation into Cancer and Nutrition (EPIC) Study: A Systematic Review. Nutrients. 2021;13(10):3582. doi: 10.3390/nu13103582.
Bouvard V, Loomis D, Guyton KZ, et al, International Agency for Research on Cancer Monograph Working Group. Carcinogenicity of consumption of red and processed meat. Lancet Oncol. 2015;16(16):1599–600.
Farvid MS, Stern MC, Norat T, et al. Consumption of red and processed meat and breast cancer incidence: A systematic review and meta-analysis of prospective studies. Int J Cancer. 2018;143(11):2787–2799.
Guo J, Wei W, Zhan L. Red and processed meat intake and risk of breast cancer: a meta-analysis of prospective studies. Breast Cancer Res Treat. 2015;151(1):191–8.
Farvid MS, Cho E, Chen WY, et al. Dietary protein sources in early adulthood and breast cancer incidence: prospective cohort study. BMJ 2018;348:g3437.
Zheng JS, Hu XJ, Zhao YM, et al. Intake of fish and marine n-3 polyunsaturated fatty acids and risk of breast cancer: meta-analysis of data from 21 independent prospective cohort studies. BMJ 2013;346:f3706.
Dydjow-Bendek D, Zagoźdźon P. Total Dietary Fats, Fatty Acids, and Omega-3/Omega-6 Ratio as Risk Factors of Breast Cancer in the Polish Population – a Case-Control Study. In Vivo 2020;34(1):423–431.
Shin WK, Lee HW, Shin A, et al. Milk Consumption Decreases Risk for Breast Cancer in Korean Women under 50 Years of Age: Results from the Health Examinees Study. Nutrients 2019;12(1):32.
Chen L, Li M, Li H. Milk and yogurt intake and breast cancer risk: A meta-analysis. Medicine (Baltimore). 2019;98(12):e14900.
Song D, Deng Y, Liu K, et al. Vitamin D intake, blood vitamin D levels, and the risk of breast cancer: a dose-response meta-analysis of observational studies. Aging (Albany NY). 2019;11(24):12708–12732.
Han Y, Zong X, Li Y, et al. Milk intake and mammographic density in premenopausal women. Breast Cancer Res Treat. 2019;174(1):249–255.
Zhang K, Dai H, Liang W, et al. Fermented dairy foods intake and risk of cancer. Int J Cancer. 2019;144(9):2099–2108.
Nilsson LM, Winkvist A, Esberg A, et al. Dairy Products and Cancer Risk in a Northern Sweden Population. Nutr Cancer. 2020;72(3):409–420.
Savaiano DA, Hutkins RW. Yogurt, cultured fermented milk, and health: a systematic review. Nutr Rev. 2021;79(5):599–614.
Kaluza J, Komatsu S, Lauriola M, et al. Long-term consumption of non-fermented and fermented dairy products and risk of breast cancer by estrogen receptor status – Population-based prospective cohort study. Clin Nutr. 2021;40(4):1966–1973.
Zhang R, Zhang X, Wu K, et al. Rice consumption and cancer incidence in US men and women. Int J Cancer. 2016;138(3):555–564.
Xie M, Liu J, Tsao R, et al. Whole Grain Consumption for the Prevention and Treatment of Breast Cancer. Nutrients. 2019;11(8):1769.
Xiao Y, Ke Y, Wu S, et al. Association between whole grain intake and breast cancer risk: a systematic review and meta-analysis of observational studies. Nutr J. 2018;17(1):87.
Gaesser GA. Whole Grains, Refined Grains, and Cancer Risk: A Systematic Review of Meta-Analyses of Observational Studies. Nutrients. 2020;12(12):3756.
Partula V, Deschasaux M, Druesne-Pecollo N, et al. Associations between consumption of dietary fibers and the risk of cardiovascular diseases, cancers, type 2 diabetes, and mortality in the prospective NutriNet-Santé cohort. Am J Clin Nutr. 2020;112(1):195–207.
Farvid MS, Cho E, Eliassen AH, et al. Lifetime grain consumption and breast cancer risk. Breast Cancer Res Treat. 2016;159(2):335–45.
Shin WK, Lee HW, Shin A, et al. Multi-Grain Rice Diet Decreases Risk of Breast Cancer in Korean Women: Results from the Health Examinees Study. Nutrients. 2016;12(8):2273.
Farvid MS, Chen WY, Rosner BA, et al. Fruit and vegetable consumption and breast cancer incidence: Repeated measures over 30 years of follow-up. Int J Cancer. 2019;144(7):1496–1510.
Farvid MS, Chen WY, Michels KB, et al. Fruit and vegetable consumption in adolescence and early adulthood and risk of breast cancer: population based cohort study. BMJ 2016;353:i2343.
Aune D, Chan DS, Vieira AR, et al. Fruits, vegetables and breast cancer risk: a systematic review and meta-analysis of prospective studies. Breast Cancer Res Treat. 2012;134(2):479–493.
Fung TT, Chiuve SE, Willett WC, et al. Intake of specific fruits and vegetables in relation to risk of estrogen receptor-negative breast cancer among postmenopausal women. Breast Cancer Res Treat. 2013;138(3):925–930.
Heath AK, Muller DC, van den Brandt PA, et al. Nutrient-wide association study of 92 foods and nutrients and breast cancer risk. Breast Cancer Res. 2020;22(1):5. doi: 10.1186/s13058-019-1244-7.
Sharif Y, Sadeghi O, Benisi-Kohansal S, et al. Legume and Nuts Consumption in Relation to Odds of Breast Cancer: A Case-Control Study. Nutr Cancer. 2021;73(5):750–759.
van den Brandt PA, Nieuwenhuis L. Tree nut, peanut, and peanut butter intake and risk of postmenopausal breast cancer: The Netherlands Cohort Study. Cancer Causes Control. 2018;29(1):63–75.
Sangaramoorthy M, Koo J, John EM. Intake of bean fiber, beans, and grains and reduced risk of hormone receptor-negative breast cancer: the San Francisco Bay Area Breast Cancer Study. Cancer Med. 2018;7(5):2131–2144.
Wei Y, Lv J, Guo Y, et al. China Kadoorie Biobank Collaborative Group. Soy intake and breast cancer risk: a prospective study of 300,000 Chinese women and a dose-response meta-analysis. Eur J Epidemiol. 2020 Jun;35(6):567–578. doi: 10.1007/s10654-019-00585-4.