Chủ Nhật, Tháng Tư 21, 2024
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HomeHealthcareProcessed meat 'linked to breast cancer'

Processed meat ‘linked to breast cancer’

[Reading level: B2 – Upper Intermediate]

Regularly eating foods like bacon and sausages may raise the risk of breast cancer, according to researchers.


A review of studies found women who ate high levels of processed meat had a 9% increased risk of the cancer compared with those who ate little of it.


The study backs up previous findings of the World Health Organization, which says processed meats cause cancer.


Experts recommend caution about the findings and say the actual risk for individual women is “very small”.


How reliable are the findings?


This review, which included data on more than a million women, shows a link between processed meat consumption and breast cancer risk, but it’s not clear if the food is actually causing this.


There are also other pitfalls to consider.


The 15 studies used in the analysis had different definitions of the highest consumptions.


For example, one of the UK studies in the review classed high consumption as more than 9g a day – the equivalent of just two or three rashers a week – while in others it was much higher.


The researchers in the majority of these studies noted what people said they ate and followed them up to see which of them developed breast cancer.


But the problem with this is that people who eat different amounts of processed meat may also have other behaviours that might explain the differences in breast cancer risk, such as being more or less healthy in other ways.


What is the risk? Đâu là nguy cơ?

In the UK about 14 out of every 100 women will get breast cancer at some point in their lives.


That means a 9% increase in risk in this population would be expected to translate into roughly one extra case of cancer in every 100 women.


It estimates that about 8% of cases are caused by being overweight and obese and another 8% by alcohol.


Authors of this study, published in the International Journal of Cancer, say the link they found is only for processed meat, not red meat.


The WHO lists processed meat as carcinogenic, primarily because of evidence linking it to a raised risk of bowel cancer, while it says red meat is “probably carcinogenic”.


What is processed meat?Thịt được chế biến là gì?

Processed meat has been modified to either extend its shelf life or change the taste, usually by smoking, curing, or adding salt or preservatives to meat.


This includes bacon, sausages, hot dogs, salami, corned beef, beef jerky and ham.


There are different theories for why it may raise the risk of cancer, including that curing salt may react with protein in the meat to make it carcinogenic.


So should we cut out processed meat?


Lead author Dr Maryam Farvid, of the Harvard TH Chan School of Public Health in the US, recommends cutting down on the meat rather than eliminating it.


Currently, the NHS recommends eating no more than 70g of red and processed meat a day.


Dr Gunter Kuhnle, associate professor in nutrition and health at the University of Reading, who was not involved in the study, said it was “questionable” whether people should lower their red and processed meat consumption on the back of this study.


He said the actual risk posed by processed meats was “very small” for the individual and more relevant on a population-wide level.


However, he said the study’s findings should be followed up to investigate the links between processed meat and cancer and see whether the associated risk could be reduced, for example through new food production methods.




back up /’bækʌp/ (v): ủng hộ, hỗ trợ

expert /’ekspɜ:t/ (n): chuyên gia

fitfall  /’pitfɔ:l/ (n): cạm bẫy, nguy hiểm bất ngờ

analysis /ə’næləsis/ (n): phân tích

equivalent   /i’kwivələnt/ (adj): tương đương

obese /əʊ’bi:s/ (adj): béo phì

carcinogenic /,kɑ:sinə’dʒənic/ (adj): có tính gây ung thư

bowel /’baʊəl/ (n): đường ruột

modify /’mɒdifai/ (v): thay đổi, biến đổi

beef jerky (n): thịt bò khô

ham /hæm/ (n): giăm bông

cut down on (v): cắt giảm

eliminate /i’limineit/ (v): loại bỏ

on the back of (expression): vì, bởi vì, do kết quả của điều gì


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