Saturday, February 28, 2009
Tuesday, February 17, 2009
Having Genetically Modified Crops-Gambling with your lives ?
What is Genetically Modified Foods/Crops ?The term GM foods or GMOs (genetically-modified organisms) is most commonly used to refer to crop plants created for human or animal consumption using the latest molecular biology techniques.
Genetically modified foods are those which have foreign genes inserted into their DNA. While scientists originally assumed that the inserted genes would only add a particular desired trait to the crop, new evidence suggests that the host’s normal natural genes can get switched off, turned on permanently, damaged, or altered in the process. And that’s just some of the many ways that GM foods may create unpredicted and potentially dangerous side effects.
Genetically modified foods are those which have foreign genes inserted into their DNA. While scientists originally assumed that the inserted genes would only add a particular desired trait to the crop, new evidence suggests that the host’s normal natural genes can get switched off, turned on permanently, damaged, or altered in the process. And that’s just some of the many ways that GM foods may create unpredicted and potentially dangerous side effects.
Scientists’ warnings proven correct
1. GM could create foods that are toxic, allergenic and less nutritious than their non-GM counterparts
2. GM crops could damage vulnerable wild plant and animal populations and harm biodiversity
3. GM plants cannot be recalled, but as living organisms will multiply, passing any damaging traits from generation to generation
4. GM crops could cause irreversible changes to our food supply, with serious effects on the environment and human and animal health.
All these concerns have since been proven correct.
GM foods have not been proven safe to eat
It is often claimed that people have been eating GM foods in the USA and elsewhere for ten years without ill effects and that this proves that the products are safe. But this claim is scientifically indefensible. GM foods are not labelled in the US and other nations where they are widely eaten and consumers are not monitored for health effects. Because of this, any health effects from a GM food would have to meet unusual conditions before they would be noticed. The health effects would have to:
- occur immediately after eating a food that was known to be GM (in spite of its not being labelled). This kind of response is called acute toxicity.
- cause symptoms that are completely different from common diseases. If GM foods caused a rise in common or slow-onset diseases like allergies or cancer, nobody would know what caused the rise.
- be dramatic and obvious to the naked eye. Nobody examines our body tissues with a microscope for harm after eating a GM food. But just this type of examination is needed to give early warning of problems such as pre-cancerous changes.
To detect more subtle effects on health, or effects that take time to show up (chronic effects), long-term controlled studies on larger populations are required. But no such studies have been done.
Under these conditions, moderate or slow-onset health effects of GM foods could take decades to become known, just as it took decades for the damaging effects of trans-fats (another type of artificial food) to be recognized. ‘Slow poison’ effects from trans-fats have caused millions of premature deaths across the world.
GM foods are not more nutritious but can be toxic or allergenic
There are no commercially available GM foods with improved nutritional value. Currently available GM foods are no better and in some cases are less nutritious than natural foods
GM foods are not the answer to the world food crisis
The root cause of hunger is not a lack of food, but a lack of access to food. The poor have no money to buy food and increasingly, no land on which to grow it. Hunger is fundamentally a social, political, and economic problem, which GM technology cannot address.
Note : As the author is not a biologist or an expert in this field, the relevant portions are taken from online sources. So open comments are invited for improving this post. Thank you.
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