from:e.uuuwell.com 2018-8-11 01:10
i do not know when to begin, "food" and "carcinogenic" two words are closely linked together, you just enter the "food" and "carcinogenic" two words, the computer screen in search engines will pop up thousands of pages on carcinogenic food, cola, instant noodles, even milk, soy milk, you eat these foods have been dubbed the name of "carcinogenic." in this regard, chinese academy of engineering, the national food safety risk assessment center researcher chen junshi we analyzed the most easily misunderstood several carcinogenic food, and tell us, in fact, a lot of 'food carcinogenic "statement was misrepresented and did not relevant scientific basis.
milk. milk carcinogenic statement has been widely circulated, one argument is that the igf-1 in milk may stimulate cancer cell growth and reproduction active, cause cancer. chen jun shi researcher pointed out, igf-1 is insulin full name one growth factor, which is a hormone secreted by living organisms like protein, to respect human blood glucose control, growth and development plays an important role. the human body also contains igf-1, the body of an adult daily amount of produced ten million nanograms. the milk market in igf-1 content of about 2.45 ng/ml, well below the amount of the human body. assessment of the scientific community that there is no evidence that igf-1 is carcinogenic factors. there are claims that milk casein cause cancer. was coined by american professor from cornell university, colin campbell, one of "rats" carcinogen aflatoxin rats were given the same time, were fed soy protein or casein (as the sole source of protein ), showed that the number of liver cancer in rats eating casein than the rats to eat more soy protein. but in the process of spreading, people are often the carcinogen aflatoxin ignored. chen jun shi said that aflatoxin has always been a strong carcinogen, and it is a variety of sources of dietary protein, can not eat a certain kind of protein. thus, this experiment not only extended casein carcinogenic conclusion, the experimental results do not apply to others. if there is no carcinogens, either casein or soy protein will not cause cancer in rats. therefore, we can use this analogy animal experiments carcinogenic effect of milk. in fact, the quality of calcium-rich milk, and it is easy to digest and absorb, for consumers, the daily consumption of a glass of milk to meet the body's demand for calcium is good.
overnight dishes. overnight dish carcinogenic argument "based on" lies "overnight vegetable produce nitrite, nitrite is a carcinogen." chen jun shi researcher said, "overnight vegetable" because different types of vegetables, in keeping improper, stored for too long under the circumstances, which may indeed nitrate into nitrite. however, nitrite itself is not carcinogenic, secondary amine only with human intake of other foods, medicines, etc. may be contained in the formation of carcinogens - nitrosamines. however, this reaction also requires certain conditions, nitrite, may not be able to generate nitrosamines, we can not equate nitrite into nitrosamines. at the same time, much depends on whether the carcinogenic dose. experimental results show that, in general, although the overnight menu nitrite content increased, but the content is limited to human health and does not constitute a substantial impact. so, as long as stored properly, overnight vegetable nitrite content is not significantly increased, but compared to food safety standards allow ham, pickles nitrite content is even lower number, do not need to worry too much . of course, is to eat vegetables is to do the best, if not eat, should be refrigerated.
coke. coke carcinogenic statement originally came from the united states a consumer protection organization, "the american center for science in the public interest" (cspi) released an announcement that caramel cola containing 4-methylimidazole, adding that this substance may be carcinogenic. in fact, the caramel is a pigment commonly used in food processing (for example). in some way during the production of caramel color would indeed generate byproducts carcinogenic effects in animals --4- methylimidazole, but that does not mean caramel cause cancer. safety of the scientific community caramel quite full, the us, china and the european union and other countries regard it as a very safe food coloring. as its byproducts 4-methylimidazole, do not think that this substance can give any immediate danger to human health assessment of the us fda, only when a person drinks more than 1000 cans of cola a day, it may lead to cancer risk; the european food safety board also believes that 4-methylimidazole "is not a problem." therefore, there is not enough evidence of carcinogenic cola, as a general component of drinking cola, not because of excessive intake of 4-methylimidazole and affect health. consumers should understand that cola contains a lot of sugar, you should not drink, even though it does not cause cancer.
milk. milk carcinogenic argument has been gaining in popularity, and its grounds contain large amounts of soy phytoestrogens, may lead to breast cancer and other women. in fact, phytoestrogens in soy does not mean that the human estrogen. soy phytoestrogens mainly soy isoflavones, which have two-way adjustment, in the case of low estrogen can make up for deficiencies, help with the prevention and treatment of some of the decline in estrogen levels related diseases, such as menopause and osteoporosis; in the case of high estrogen, which compete with estrogen receptors, play an inhibitory effect, help prevent breast cancer. therefore, people need not worry about drinking milk can cause breast cancer. milk is a nutritious good food, "chinese dietary guidelines" recommended daily consumption of 30 to 50 grams of soy, the equivalent of 800 to 1200 ml per day of milk, so that moderate drinking milk can only be good.
noodles. all the rumors about the harmful after instant noodles from a dozen years ago has never stopped: there is that instant noodles have preservatives, antioxidants, eating more will become a "mummy"; riceses accumulate wall of the wax layer after being eaten carcinogenicity and other organs in the body. junshi researcher told us, instant noodles, although hardly a health food, but on its "harmful" rumors do not fly. instant noodles preservatives and antioxidants are processing needs of legitimate food additive safety is through scientific assessments, as long as the use of the law, will not have an impact on human health. as for the fear of instant noodles bowl paraffin is unfounded. instant noodles are now used in the production of polyethylene coating cups cups in fact, that it can withstand the temperature of the cup noodles when, but also a very good impermeable, wax cup had basically eliminated. consumers need to understand that human nutrition mainly depends on the diversity of food, instant noodles often indispensable in the present life, but be careful if you do not eat instant noodles and nutritionally balanced, although not carcinogenic.
- chen jun shi, chinese academy of engineering, the national food safety risk assessment center researcher.