Why have cows been injected with proteins?
Cows have been injected with proteins to increase milk production or to help them grow faster before slaughter.
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Studies have been conducted on synthetic products, including DDT and estrogen. The use of these synthetic products has been discontinued due to increased risk of cancer and other health concerns. Genetic engineering has increasingly been used in cattle, crops, and pharmaceuticals. The long-term effects of genetic engineering have not been studied at this time. What risks, if any, are there to using genetic engineering in food and medicine?
Possible risks include unexpected changes in food that could affect nutrition or cause allergic reactions, and engineered genes spreading into wild populations. In medicine, genetic treatments could have unforeseen side effects. Because long-term effects are not yet fully known, careful testing and monitoring are important.
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