Can drinking coffee fight cancer? Different points of view

"Why do foreigners drink coffee every day? An amazing secret you don't know! "more than 100000 people have read a single article in a short period of time. This seemingly popular science article lists nine benefits of coffee and even mentions its anti-cancer effect, saying that caffeine can inhibit tumor growth. If women could drink 4-6 cups of coffee a day, the incidence of breast cancer would be reduced by 25% and 70%. Is this really the case?

Recently, many people have been forwarding an article pushed by a public account on Wechat moments, "Why do foreigners drink coffee every day?" An amazing secret you don't know! "more than 100000 people have read a single article in a short period of time. This seemingly popular science article lists nine benefits of coffee and even mentions its anti-cancer effect, saying that caffeine can inhibit tumor growth. If women could drink 4-6 cups of coffee a day, the incidence of breast cancer would be reduced by 25% and 70%. Is this really the case?

Can coffee fight cancer? At present, there are different views.

Can drinking coffee fight cancer? Some nutrition experts say it is not reliable, and some studies have shown that coffee can effectively reduce the risk of some cancers, but in fact, coffee was not only not thought to prevent cancer, but also thought to cause cancer. This is mainly because coffee will produce acrylamide in the roasting process, acrylamide may lead to human cancer, there is a potential risk of cancer. In addition, some animal experiments and epidemiological studies have shown that drinking coffee can increase the risk of bladder cancer, so the World Health Organization still lists coffee as a "possible human carcinogen", but only for bladder cancer.

But a review published in 2010 in the British journal Nutrition and Cancer concluded that more than 500 papers have studied the relationship between coffee drinking and cancer. Taken together, coffee drinking seems to have a strong preventive effect on hepatocellular carcinoma and endometrial cancer, a weak preventive effect on colorectal cancer, and no effect on breast, kidney, ovarian, prostate or gastric cancer. in some groups and men, heavy coffee drinking seems to increase the risk of bladder cancer. The relationship between maternal coffee drinking and childhood leukemia is uncertain, and some believe that excessive maternal drinking increases the risk of childhood leukemia. Experts say that epidemiological investigations into the relationship between eating habits and cancer are often crude, so it is difficult to get exact results and often conflict with each other.

How to drink coffee scientifically?

Experts suggest that it is best to drink coffee half an hour after a meal, not before a meal. Drinking coffee before meals will affect the absorption of iron, calcium and other mineral elements, resulting in the loss of iron and calcium, easy to cause iron deficiency anemia, menopausal women easy to get osteoporosis. In addition, coffee is an exciting drink, excessive consumption may lead to insomnia, tension, stomach discomfort and so on. From a nutritional point of view, it is enough for normal people to drink one or two cups of coffee a day, and it is best not to drink it at night.