NOTE: This is an excellent article with clear and concise reasons for voting Yes on 37 by a scientist who has worked extensively with genetically modified animals.
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Why I'm Voting Yes on Prop 37: Label Genetically Modified Foods
Darya Pino Ph.D
Huffington Post, 29 October 2012
 http://labs.huffingtonpost.com/highlights/quote/3686616/

To be honest, I'm a little surprised I even need to write this. In a national survey, over 90 percent of American voters favored labeling genetically modified (GMO) foods. Labels for GMOs are already required in the European Union, Japan, Australia and dozens of other nations. In direct expenses, adding a label costs next to nothing for both companies and consumers.

I was a bit annoyed when I started seeing ads calling Prop 37 unnecessarily complicated and poorly written, but I didn't think TV ads could close such a huge gap. Before the television blitzkrieg by the anti-Prop 37 contingent, it looked poised to win in California by a landslide, and I figured the lead was large enough to hold.

However, anti-Prop 37 contributions have totaled over $41 million, with the biggest donors being Monsanto, Dupont, Pepsico, and other giant food producers. (In comparison, the pro-Prop 37 contributions total just over $6 million -- a little less than Monsanto contributed alone). As a result the most recent polls show Prop 37 is in a dead heat, and we are in danger of losing this opportunity to add transparency to our food system.

Legal Language

Despite what negative television ads have claimed, the proposition is neither complex nor poorly written (you can read it for yourself here). It's fairly straight forward, in fact. Prop 37 states that any raw food commodity that has been genetically manipulated must have a clear label stating such. Any processed food that knowingly contains GMO ingredients must also have a label.

Prop 37 does not require labeling for specific ingredients, meaning that if a product contains both genetically modified corn and soy (as most processed foods do) the ingredient list will still just say "corn" and "soy." However, somewhere on the package it must say that the food contains genetically modified ingredients.

Restaurant food is excluded, so you could still enjoy your genetically modified Big Mac in blissful ignorance. Animal products that are fed genetically modified foods (most industrial meat production relies on GMOs for feed) do not need to be labeled. Alcohol is also exempt. Organic certification already prohibits the use of genetic modification, so organic foods will not be affected.

The only additional provision, which I think makes sense, is that GMO foods and those containing GMO ingredients cannot use the word "natural" or anything similar (e.g. "naturally made") on their labels.

Costs

Food companies add and remove food labels all the time -- imagine how quickly they'd change the label if they learned processed foods protect against heart disease. However, major food producers like Monsanto, Kraft, and General Mills anticipate people avoiding GMO foods if they are labeled, so they see this proposition as a threat to their profits.

Prop 37 will cost consumers next to nothing, unless you choose to buy non-GMO food that happens to be more expensive. While anti-Prop 37 ads claim the cost to consumers will be $400 annually, that is based on a study (funded by the No on 37 camp) that assumes they will have to switch to non-GMO foods and charge more for them. This is a strange assumption that does not reflect the language of Prop 37, which does not ban GMO foods.

Some have argued that the more likely outcome is that they will start putting "May contain genetically engineered ingredients" on everything (over 80 percent of processed foods are currently made with GMOs) and hope we learn to ignore it, similar to what happened with Prop 65. This scenario would negate the costs projected by their study. Another study (with equally dubious funding) found that there is unlikely to be any additional costs to consumers. Importantly, labeling GMOs did not increase the cost of food in other nations.

Safety Concerns

So what's all the fuss about? Are GMOs dangerous for us to eat or not? This is not particularly easy to answer because the term "genetic engineering" is incredibly broad. Just as cancer is not one disease, genetic engineering is not one kind of biological change. The safety of each manipulation must be determined on a case-by-case basis, and testing should be rigorous and exhaustive to detect all potential problems, side effects and unintended consequences.

As anyone who has worked extensively with genetically modified animals can tell you (I did for years), the effects of a single gene deletion or insertion are often very surprising and can be quite subtle. Sometimes nothing happens, sometimes crazy things happen, and sometimes you can't tell what happened until you let the animal's life run its course and study it extensively. That isn't to say we aren't able to have a solid understanding of some genetic manipulations, but it is not a simple science.

It gets even more tricky when you're talking about releasing GMOs into the environment. It's very difficult to contain genetic material in an ecosystem. It tends to spread, and ecological balance can be very fragile. This is why you are not allowed to bring fruit with you on international flights. Even native, non-genetically altered species can disrupt an ecosystem, and the same concerns apply to new or altered species created in a laboratory.

I'm not making the case that GMOs are somehow inherently unhealthy or bad for the environment. Indeed, in some cases the potential benefit of GMO crops may justify their prudent use. My point is that as a culture we should understand that genetic manipulation is a messy science that requires thoughtful consideration and rigorous oversight. We should not take this subject lightly.

What's at Stake

Big Food has always fought tooth and nail against any kind of labeling regulations, but are quick to seek approval of health claims to put on the front of food packaging whenever possible. It's obvious why. For food manufacturers labels are about marketing, not about health. Positive labels sell more food, while negative labels discourage sales.

Our current food system is shrouded heavily in secrecy, and this is intentional. Food companies rightfully fear that if we know more about what is in our food and how it was produced, we might start asking more questions and demanding better. Currently corn, soy beans, cotton, sugar beets, canola, alfalfa, Hawaiian papaya, zucchini, and yellow crookedneck squash are genetically modified. Billions of dollars have been invested in this technology and the big food companies would not be happy if some of us decided to stop eating these foods.

What this really comes down to is transparency. Honest businesses with nothing to hide only win when more transparency is available. This is largely why organic food is such a big supporter of Prop 37 -- the organic certification system is incredibly rigorous and these companies have already invested in the transparency of their businesses.

Consumers also win with more transparency because it enables them to make better informed decisions. If we believe certain GMOs are safe to eat, we can eat them. If some of us are more skeptical of one kind or another, we can skip them. Even Big Food benefits in the long run with more transparency, because it creates more confidence in their products as they are proven safe.

Prop 37 does not make any judgement on GMO foods. It does not ban them and it does not regulate their use. It simply requires food companies to indicate on their label if GMOs are present, so consumers can know with confidence what they are buying and eating. If you think this small act of tranparency is reasonable, you should support Prop 37 and vote yes if you live in California.

Originally published at Summer Tomato, where you can find more healthy eating tips. Summer Tomato is one of Time's 50 Best Websites of 2011.
 http://summertomato.com/why-im-voting-yes-on-prop-37-label-genetically-modified-foods/