You pro genetically modified food buffs keep forgetting about one BIG reason to not consume or promote those. This alone should be enough for any reasonable person to stop then: alimentary independence.
It's no secret that most genetically modified crops are under patents which enable the companies that produce then to have total control over the plantation of these crops: You've got to buy the seeds from these companies, allways, and can't use part of your crop to replant.
This wouldn't be so bad if it stoped there but these companies (google Monsanto) are working toward destroying unmodified crops through legal or illegal means, specially in third world countries. Furthermore, these companies issue lawsuits against people who inadvertedly have had their own crops contaminated by the genes of the genetically modified species. Meaning that if you've got a non genetically modifed field and your crop is pollinized with genetically modified crops then you'll have to pay these companies as if you are using these product.
Their ultimmate goal is to completely replace traditional crops with their genetically modified crops and practically control the food market. Just like traditional herbs and medicines had been bashed by an arrogant scientific comunity for years in benefit of the farmaceutical industry.
There are quite a lot more reasons to not support genetically modified crops which can certainly be debatable but this one is in my opinion a certain fact, and its effects can already be seen in countries like India, Mexico or event the USA.
