What are Genetically Modified (GM) Foods?
Although "biotechnology" and "genetic modification" commonly are used interchangeably, GM is a special set of technologies that alter the genetic makeup of such living organisms as animals, plants, or bacteria. Biotechnology, a more general term, refers to using living organisms or their components, such as enzymes, to make products that include wine, cheese, beer, and yogurt.
Combining genes from different organisms is known as recombinant DNA technology, and the resulting organism is said to be "genetically modified," "genetically engineered," or "transgenic." GM products (current or in the pipeline) include medicines and vaccines, foods and food ingredients, feeds, and fibers.
GM Products: Benefits and Controversies
Benefits
Crops
-Enhanced taste and quality
-Reduced maturation time
-Increased nutrients, yields, and stress tolerance
-Improved resistance to disease, pests, and herbicides
-New products and growing techniques
Animals
-Increased resistance, productivity, hardiness, and feed efficiency
-Better yields of meat, eggs, and milk
-Improved animal health and diagnostic methods
Environment
-"Friendly" bioherbicides and bioinsecticides
-Conservation of soil, water, and energy
-Bioprocessing for forestry products
-Better natural waste management
-More efficient processing
Society
-Increased food security for growing populations
Controversies
Safety
-Potential human health impact: allergens, transfer of antibiotic resistance markers, unknown effects Potential environmental impact: unintended transfer of transgenes through cross-pollination, unknown effects on other organisms (e.g., soil microbes), and loss of flora and fauna biodiversity
Access and Intellectual Property
-Domination of world food production by a few companies
-Increasing dependence on Industralized nations by developing countries
-Biopiracy—foreign exploitation of natural resources
Ethics
-Violation of natural organisms' intrinsic values
-Tampering with nature by mixing genes among species
-Objections to consuming animal genes in plants and vice versa
-Stress for animal
Labeling
-Not mandatory in some countries (e.g., United States)
Mixing GM crops with non-GM confounds labeling attempts
Society
-New advances may be skewed to interests of rich countries
-http://www.ornl.gov/sci/techresources/Human_Genome/elsi/gmfood.shtml