Bracken it wise to eat less 
 
 
China's traditional Chinese medicine to 

        Recently, a table of common ferns and fern root powder carcinogenic, circulating on the Internet. To this, the food safety experts all agree, points out that the bracken contain "original fern nucleoside" is a kind of carcinogen, bracken it wise to eat less, natural traditional food also is not necessarily safe. 
 
        The study found that bracken or cancer 
 
        Bracken is a representative of the traditional wild vegetables, is "ShanCai king", a lot of people is devoted to the mountains to dig bracken, thought it green pollution-free, nutritious, and even cancer, known as "longevity food." And fern root powder is extracted from the roots of wild bracken processes and become a kind of starch materials, the restaurant do the tart fern root powder, is hit a high of a cold dish. 
 
        China agricultural university, associate professor of food science and nutrition engineering institute Zhu Yi introduction, in the 1990 s had a epidemiological studies, showed that we eat a lot of ferns in early childhood, also can increase the risk of adulthood was susceptible to stomach cancer. Such epidemiological studies in Japan, the UK's done some from all over the world, the results are similar. Even some produced bracken, because cows ate grass bracken, milk may also contain a small amount of the original fern glycosides. Milk is need high temperature sterilization, however, the process can make the carcinogenic substances in the bracken content declined dramatically. 
 
        Members and science writer, the science squirrels, food engineering, Dr Cloud not intentional attention as early as a few years ago to bracken carcinogenic. , he said, "bracken carcinogenic" has a solid scientific evidence to support that eating bracken will lead to higher incidence of esophageal cancer, gastric cancer, and the "original fern nucleoside" in the han is the main culprit of the symptoms. As early as one hundred years ago, people noticed that the plant can cause poisoning or even death of cattle they own, and animal experiments have confirmed that the fern can actually lead to cancerous animals. 
 
        Boiling water can reduce carcinogen content 
 
        Zhu Yi, said of the fern in the bracken, current cancer rating it into 2 class b carcinogen, original fern glycosides in animal experiments showed a carcinogen. 
 
        However, people usually eat bracken, will handle bracken, because these raw fern vegetables is not good, in most cases after cooking and stir-fry, this way, can let the original fern glycosides content to a certain degree, moreover water leaching, alkaline or plant ash after processing, can also reduce the fern glycosides, "but these are just let levels drop, not eliminate the". 
 
        Current epidemiological investigation, "bracken eat or risky," Zhu Yi advice, or the need to control frequency of ferns, and eat the number of ferns. As long as the control quantity, occasionally eat less a bit, also there is no need to panic. Bracken like bacon, sausage, meat is similar, are carcinogenic risk of food, eat a little bit also don't have to worry too, don't long for large quantities. (Liao Ailing)
 
 
 
The original link: http://www.cntcmvideo.com/zgzyyb/html/2014-02/20/content_82699.htm