In recent days, the safety of genetically modified (GM) foods has sparked widespread debate. Experts from various fields have come forward with their research findings and opinions. Some claim GM foods are entirely safe, while others warn of potential dangers such as subjugation or even extinction. Faced with conflicting scientific results and polarized views, many people are left confused: who should they trust?
The "reversal" voices:
Genetically modified crops that pests avoid—can humans eat them?
As we know, crops often face challenges like floods, droughts, and insect infestations. Transgenic plants are created by introducing artificially modified genes into plant genomes through techniques like protoplast fusion or genetic material transfer. These modifications aim to produce crops with higher yields, better quality, and resistance to pests, diseases, and environmental stress. Foods made from these organisms are considered genetically modified.
A major concern is whether the insect-resistant genes in GM crops could affect human health when consumed. In August 2013, a video titled “CCTV finally recognized cancer caused by genetically modified foods†spread rapidly on WeChat. It claimed that mice fed GM maize developed cancer. However, this was actually an old study from 2012 conducted by Professor Seralini, who found tumor growth in mice after long-term exposure to GM corn. While controversial, the study caused significant public concern in China.
Another report from the Jiangsu CPPCC suggested that long-term consumption of certain GM foods may trigger allergies, affect kidney function, reproductive health, and even cause unexplained illnesses. A paper by Professor Zhang Chenyu from Nanjing University revealed that plant microRNAs can enter the human bloodstream through food, potentially influencing gene expression and physiological functions. This raised new questions about the safety of GM foods.
Some military experts view GM foods as a potential threat, even calling it a "conspiracy." Major General Peng Guangqian argued that GM crops could be used as biological weapons, comparing the risk to the Opium War. Similarly, Major General Luo Su warned about foreign interference in China’s biosafety and the possible use of GM technology as a strategic weapon.
On the other hand, supporters argue that GM technology is essential for addressing food security. With a growing population and limited resources, transgenic crops offer practical solutions. According to Zhang Qifa, a leading scientist, delaying GM commercialization is a mistake. Xu Haibin, director of the National Food Safety Risk Assessment Center, noted that GM foods are already part of daily life, and avoiding them is nearly impossible.
Professor Song Xiaoling from Nanjing Agricultural University emphasized that GM foods undergo rigorous testing before being approved. She pointed out that no clear evidence shows harm to humans, and China has strict safety regulations in place. Fang Zhouzi, a well-known science writer, has eaten GM foods for over a decade and argues that they are safer, cheaper, and more environmentally friendly.
Chen Zhiwu, a Yale professor, highlighted the historical impact of GM crops, comparing them to the introduction of corn and sweet potatoes in China. He stressed that GM technology could help address food security concerns and urged society to move beyond conspiracy theories.
Ultimately, the debate around GM foods reflects broader societal concerns. While some fear unknown risks, others see great potential. The key lies in transparency, informed choice, and ensuring public safety. As Yuan Longping once said, the safety of GM foods may take generations to fully understand. For now, the conversation must continue with open dialogue, respect, and a commitment to science and ethics.
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