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基因轉移食品爭議(英語:Genetically modified food controversies)是指關於食用基因轉移作物及其副產品、在食品生產中利用基因工程技術而非植物配種等方面的爭議。這場爭議與消費者、生物技術公司、政府管理者、非政府組織和科學家都密切相關。關於基因改造食品的爭論核心包括:基因轉移食品的上市標註、政府管理者的責任、相關科學研究的目的、基因轉移作物對環境和健康的影響、對害蟲之抗藥性(英語:Pesticide resistance)的影響、對農業生產者的影響和基因轉移作物對滿足全球糧食需求的作用。
此條目需要擴充。 (2017年6月6日) |
公眾對基因轉移食品的具體擔憂包括對於基因轉移食品與非基因轉移食品在供應上的影響[1],基因轉移食品對環境造成的影響[2][3],監督者是否會瀆職[4][5]。食品安全中心(英語:Center for Food Safety)、有機產品消費者協會(英語:Organic Consumers Association)、相關科學家聯合會(英語:Union of Concerned Scientists)及綠色和平等相關利益團體認為基因轉移相關的風險並沒有被正確認識和應對,同時質疑監管機構的客觀性。
目前的科學共識是此類基因轉移作物及其副產品的健康安全風險並不高於傳統食品[6][7],也就是說基因轉移作物的安全性是可以保證的[8][9],不過即便如此目前對基因轉移的安全評估依然十分嚴格[10]。對基因轉移食品的安全評估始於鑑定該食品是否與同類非基因轉移食品實質性等同(英語:Substantial equivalence),即確認基因轉移食品是否與已經被確認無害的傳統食品是否本質相同,且目前還沒有報告稱基因轉移食品在人身上造成疾病[11][12][13],但公眾還是擔心基因轉移食品有害健康[14][15]。雖然針對基因轉移生物產品的標註在許多國家是強制性的,但美國和加拿大並不執行類似政策,在市場上基因轉移食品和傳統食品是沒有差別的。
儘管重視食品衛生的思想自古已有之,但在美國,直到厄普頓·辛克萊的小說《屠場》出版以及純淨食品藥物法案(英語:Pure Food and Drug Act)出世後,這一問題才正式被公眾所廣泛討論[16]。這進一步導致了人們對食品純度、食品「天然度」的長期關注,這種關注隨後演變到了對防腐劑、香料、甜味劑、農藥殘留物的擔憂,有機食品的崛起以及最終對基因轉移食品的擔憂。許多消費者認為基因轉移食品是「非天然的」並對基因轉移食品充滿負面聯想和恐懼(這被認為是一種逆向的暈輪效應)[17][18]。
公眾的看法包括但不限於將基因工程視為干預自然進化的生物過程,以及認為科學在潛在危害的評估時有局限[19]。不過,一種反對的看法認為基因工程就是傳統選擇性育種的演變,且現有證據證明基因轉移食品在營養價值和健康方面與傳統食品相同(即實質性等同)[20][21]。
一系列的研究指出,人們擔憂進食基因轉移食品對身體有害[22][23][24];擔憂生物技術的風險十分高;擔憂自己了解的資訊不足,不敢冒著風險進食[25][26]。
為了更好地檢測基因轉移食品對人類的潛在影響,研究委員會認為售前安全評估應從建議性措施轉為強制性措施(To better detect potential harms of bioengineered foods, the Council believes that pre-market safety assessment should shift from a voluntary notification process to a mandatory requirement)
There is broad scientific consensus that genetically engineered crops currently on the market are safe to eat. After 14 years of cultivation and a cumulative total of 2 billion acres planted, no adverse health or environmental effects have resulted from commercialization of genetically engineered crops (Board on Agriculture and Natural Resources, Committee on Environmental Impacts Associated with Commercialization of Transgenic Plants, National Research Council and Division on Earth and Life Studies 2002). Both the U.S. National Research Council and the Joint Research Centre (the European Union's scientific and technical research laboratory and an integral part of the European Commission) have concluded that there is a comprehensive body of knowledge that adequately addresses the food safety issue of genetically engineered crops (Committee on Identifying and Assessing Unintended Effects of Genetically Engineered Foods on Human Health and National Research Council 2004; European Commission Joint Research Centre 2008). These and other recent reports conclude that the processes of genetic engineering and conventional breeding are no different in terms of unintended consequences to human health and the environment (European Commission Directorate-General for Research and Innovation 2010).
我們回顧了自基因轉移植物在全球廣泛種植以來近十年有關基因轉移作物安全性的科學文獻,我們得出結論:目前進行的科學研究並未發現任何與基因轉移作物直接相關的重大危害。
關於生物多樣性和基因轉移食品/飼料消費的文獻常引起激烈爭論,這涉及到了實驗設計的適用性、統計方法的選擇以及資料的公眾可獲取性。然而,在這場爭論中即便是科學界內常態的、自然的同行評審也常常被媒體歪曲並常用於政治化和扭曲基因轉移相關技術。(We have reviewed the scientific literature on GE crop safety for the last 10 years that catches the scientific consensus matured since GE plants became widely cultivated worldwide, and we can conclude that the scientific research conducted so far has not detected any significant hazard directly connected with the use of GM crops.
The literature about Biodiversity and the GE food/feed consumption has sometimes resulted in animated debate regarding the suitability of the experimental designs, the choice of the statistical methods or the public accessibility of data. Such debate, even if positive and part of the natural process of review by the scientific community, has frequently been distorted by the media and often used politically and inappropriately in anti-GE crops campaigns.)
「過去超過25年間的研究,有著超過130個研究項目,多餘500個獨立研究小組參與,都得出結論,生物技術,特別是基因轉移食品,並不比傳統育種的食物有更大的風險。」("The main conclusion to be drawn from the efforts of more than 130 research projects, covering a period of more than 25 years of research, and involving more than 500 independent research groups, is that biotechnology, and in particular GMOs, are not per se more risky than e.g. conventional plant breeding technologies.")(p. 16)
不同的基因轉移生物包括以不同方式插入的各種基因。這意味著應逐案評估各別基因轉移食品及其安全性,並且不可能就所有基因轉移食品的安全性發表總體聲明。目前在國際市場上可獲得的基因轉移食品已通過安全性評估並且可能不會對人類健康產生危險。此外,在此類食品獲得批准的國家普通大眾對這些食品的消費未顯示對人類健康的影響。不斷利用以食品法典委員會原則為基礎的安全性評估並酌情包括上市銷售後監測,應構成評價基因轉移食品安全性的基礎。
+pp 292-293. 超過15年間,基因轉移作物及其副產品被全世界千百萬人消費,沒有造成疾病效應。(Foods derived from GM crops have been consumed by hundreds of millions of people across the world for more than 15 years, with no reported ill effects (or legal cases related to human health).)
在美國,公眾與美國科學促進會科學家之間對基因轉移食品安全性的認知存在顯著差異。接近90%(88%)的科學家認為基因轉移食品是大概安全的,但只有37%的大眾持這一觀點,雙方差值達到51%。(The largest differences between the public and the AAAS scientists are found in beliefs about the safety of eating genetically modified (GM) foods. Nearly nine-in-ten (88%) scientists say it is generally safe to eat GM foods compared with 37% of the general public, a difference of 51 percentage points.)
G.M.O.s, in contrast, suffer from a reverse halo effect, whereby one negative-seeming attribute (unnaturalness, in this case) skews over-all perception. In a 2005 study conducted at Maastricht University, in the Netherlands, researchers found that the more unnatural a genetically modified product seemed, the less likely it would be to gain acceptance. A hundred and forty-four University of Maastricht undergraduates were asked to visualize seven products, including butter, tomatoes, and fish fingers, and rate them on naturalness, health, and necessity.
並且人們在判斷兩者孰優孰劣時會存在認知上的偏見,即天然的一定是好的,而非天然的就是壞的。而任何事物,只要進行了人為干涉都會被定義為「非天然」,比如基因轉移食品。
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