Friday, April 27, 2018

Food Production Differences

Since I read this information about different methods of food production on a four-year-old posting, it should be fairly well known.  Unfortunately forces are at work, misrepresenting and politicizing what should be straightforward, honest information.  Let’s get back to the basics.

There are a number of ways to develop seeds used to grow our food:  Conventional breeding, mutagenesis and Genetic Engineering (GE).  

The first can be split into two categories.  Purists prefer heirloom vegetables.  “Most heirlooms come from seed that has been handed down for generations in a particular region or area, hand-selected by gardeners for a special trait.”  Usually they were developed over 50 years ago in the early days of commercial breeding.  They tend to have relatively stable characteristics from generation to generation.

Hybrid veggies on the other hand are the result of intentional cross-pollination of two different plant varieties to try to capture the best traits of each such as bigger size, earlier fruit bearing or better disease resistance.  Cross-pollination may also happen in nature without human intervention.  “The process of developing a hybrid typically requires many years.”  Unlike heirlooms, if you save the seeds from hybrids, the new plants will not retain the same advantageous traits as the original and may show other unexpected characteristics.

Technically, all seeds have been modified over many thousands of years as early farmers collected seeds from the best plants in an attempt to improve flavors and yield.  (A quick Internet search shows pictures of how unappetizing these ancient crops really were.)

Genetically Engineered (GE) crops are well known due to a bad reputation invented and spread by non-scientists and fear-mongers, most of whom have an interest in promoting organic products or raising funds for their environmental projects.  These fears are further spread on social media by the uninformed and are totally unfounded.  

The US Food and Drug Administration (FDA) states very clearly, based on hundreds of studies:  “Credible evidence has demonstrated that foods from the GE plant varieties marketed to date are as safe as comparable, non-GE foods.”  They explain that traditional cross-breeding also introduces a number of genes into a plant, and both are done for the same reasons. No person has ever been harmed by eating GE foods; there is no link to cancer.  They increase yields and lower pesticide applications, which is good for the environment.  Golden Rice, a GE crop, was developed to reduce blindness in Third-World children that don’t get enough vitamin A in their diets.

The other way to modify seeds is called mutagenesis, “wherein plants are subjected to radiation treatments or doused in toxic chemicals that randomly scrambles genes to produce new traits.”  They then plant the seeds to see what comes ups and keep trying until there seems to be a desirable improvement.  “Despite the fact that this process is much less precise than genetic modification…mutagenesis is unregulated and widely used.”  

Mutagenesis sounds much scarier and haphazard than GE, yet it receives little attention, has no one screaming for labels “so we know what we are eating,” has the potential for more unintended genetic changes and can be sold as organic!  Both are deemed safe for human and animal consumption.

So why the emphasis on and fear around GE crops? Despite having been proven false over and over, some continue to warn of dangers.  And we never see news reports that yet another study reaffirms the safety of GE crops.  Others, who have a direct stake in organics, call for GMO labeling supposedly calling for clarification, but really hoping the misinformed public will erroneously see them as warning labels and needlessly spend more money on organic food.  With a coordinated campaign and a few ardent followers, it’s easy to scare people into making foolish choices.

Some research suggests that the environment, year-to-year temperature changes and location, “has more impact on the plant’s genome than whether it was genetically modified or conventionally bred.” In reality, food safety should be based on the product itself rather than the method used to develop the variety.

But this is what happens when rumors abound, when advocates push an agenda until it achieves a “common knowledge” or urban myth status, and when Americans don’t exercise the critical thinking so crucial to survival in an increasingly complex society.  How do you modify your behavior when you realize that no one else is looking out for your best interests?

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