yogurt contains rich nutrition and a large number of lactic acid bacteria, with the inhibition of harmful bacteria invasion and prevention of constipation, promote digestion and absorption of health care Meanwhile, it can also achieve the purpose of effective cancer prevention, which is very common in people's daily diet. But not the more the better, the more yogurt also need to pay attention to certain methods, such as yogurt if heated drinking, will destroy the yogurt in the living bacteria, the health effect is all lost, and yogurt if eaten with Ham will lead to cancer. What is "cancer with ham and ham"?! Fan Zhihong, associate professor of nutrition and food safety at the China Agricultural University's Department of food and food, said in his blog that "Ham yogurt and eating cancer" is not a nutritious point of view.
yogurt with this food 100% to get cancer?! The four trick teaches you to distinguish between true and false (map / Oriental IC)
Fan Zhihong rumor "yogurt and ham collocation cancer"
on this rumor, the most popular version of the Internet is
to preserve sausages, ham, Bacon, bacon and other processed meat products, the food manufacturers add nitrate to prevent food. Corruption and the growth of botulinum. As the ham and the pickled products contain nitrate, it can be reduced to nitrite under the action of lactic acid bacteria. In the presence of thiocyanate in saliva, the carcinogen (nitrosamines) can be produced, which may cause cancer of gastrointestinal and liver digestive organs. Therefore, it is not appropriate to drink lactic acid beverages one hour before and after eating foods containing nitrate.
Fan Zhihong, associate professor of nutrition and food safety at the China Agricultural University's Department of food and food, said this information has a serious scientific error:
nitrite in ham is the
first, the addition of ham and pickled products is usually sodium nitrite, even if sodium nitrate is added, it will naturally degrade into sodium nitrite to play a role. Most of the sodium nitrite continues to decompose to produce nitric oxide, which is very easy to combine with red pigment in meat, that is heme, and turn red heme into "heme". Nitric oxide heme can ensure that the meat does not change color under heating conditions. Therefore, when making meat salted products such as ham and sausages, there is no need for lactic acid bacteria to help form nitrite.
lactic acid bacteria have the ability to restore nitrate
Fan Zhihong pointed out that Lactobacillus does not have nitrate reductase, and it can not transform nitrate into nitrite. "So, let the lactic acid bacteria run into the meat and help to turn nitrate into nitrite, which is really an impossible task for the lactic acid bacteria, unless there are a lot of contaminated bacteria. In the ten thousand step, it is assumed that lactic acid bacteria can really process nitrite to nitrite and enter the stomach and then be killed by gastric acid immediately. When eating, it is the peak of gastric acid secretion. The pH value of the stomach is below 3, which is much higher than that of yogurt. Lactic acid bacteria can not live in large numbers.
the amine and nitrite in yogurt will combine into the carcinogen nitrosamines
experts say: the content of amines in yogurt is very low, and the synthesis of nitrosamines is not very helpful.
there is also a saying on the Internet that "yogurt contains amine, and meat contains nitrite. Both of them combine into carcinogen nitrosamines in the stomach".
Fan Zhihong said, in fact, the protein content in yogurt is less than 3%, the content of amines is lower, and the protein content in lean meat is nearly 20%, and amines are not much richer than yogurt. That is to say, pickled meat products already have two major raw materials for synthetic carcinogens. In the process of pickling and storage, trace amounts of nitrosamines carcinogens can be synthesized. It doesn't need "amines in yogurt" to help.
eating yogurt within one hour before and after meals can cause cancer
experts say: no experiment has confirmed this conclusion, yogurt is good for preventing cancer.
Fan Zhihong said that both animal experiments and in vitro experiments have confirmed that yogurt and lactic acid bacteria extracts have inhibitory effects on the carcinogenic effects of a variety of carcinogens and reduce the DNA damage caused by carcinogens. It has not been seen that related studies can confirm that eating yogurt within one hour before and after meals can promote the occurrence of cancer. "You don't have to be so scared to drink yogurt before and after meals." It is a great pity to make yogurt a kind of food that is nutritious and can help prevent cancer. It becomes a kind of taboo dangerous food. It is a great pity for people to drink yogurt with trembling. "