美国人为何强补叶酸（Why do Americans make up for folic acid）.docVIP

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美国人为何强补叶酸（Why do Americans make up for folic acid）.doc

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美国人为何强补叶酸（Why do Americans make up for folic acid）

美国人为何强补叶酸（Why do Americans make up for folic acid） Why is the United States strong tonic folic acid? 2009-09-02 20:50 reading popular science article 24799 comments 0 number: Associate Professor greatly in small PUHSC as seen China government funded free folic acid supplement advertising in front of his home, he made online article questioned the relevant departments practice folic acid supplement. Most people already get enough folate from food, according to him, while high folate may promote cancer cell growth and lead to an increase in the risk of cancer. He said so filled with righteous indignation: are we really rich countries to spend money, let you get sick it? Strong tonic folic acid is the most thorough way. The food and Drug Administration decided in 1996 to impose a certain amount of synthetic folic acid on food products since January 1998. By adding estimates, each American supplements an additional 200 micrograms of folic acid per day, plus folic acid from other foods, which basically meets the bodys requirements for folic acid. The effect was so clear that the rate of neural tube defects in the United States dropped by 26% a year after the addition of folic acid. Canada also took the same measures in 1998, with a more pronounced effect, with a 46% reduction in neural tube defects. Supplementing the population with folic acid may make folic acid intake in some people too high, but it is alarmist to say that high folate causes an increase in the incidence of cancer. No side effects of high folate intake have been detected. But high folate may interfere with the diagnosis of vitamin B12 deficiency. About 1/5 of the elderly lack vitamin B12, and the initial symptom is anemia. If they take too much folic acid, they will not become anaemic, and doctors may not find that they lack vitamin B12 and that they are delaying treatment. However, the daily intake of folic acid should be as high as 1 mg or more before such a situation, according to the current amount