The supposid health "issues" of GMO crops are - in one word - a lie. GMO foods are among the most heavily foods in human history - with over 12,000 studies on safety performed to date - most by independent scientists, not the producing companies.
Of those >12K studies, only two ever claimed to find evidence of harm. The first of these was retraced ~4 years ago as it was a product of fraud (e.g. an anti-GMO lobby group made the whole thing up). The second was retracted last week as the authors didn't bother doing any statistical analysis - when done, the statistics showed that there was no harm by GMO; in fact, the female rats in the study fed GMO corn did better than the female rats given organic corn.
Ironically, the "organic" options has a long track record of serious health problems In particular, the use of organic fertilizer (compost and manure) is associated with high rates of food contamination with food-born pathogens (compared to conventional farming). Most of the cases you hear of where lettuce, spinach, tomatoes, etc are making people sick are due to so-called "organic" practices.
Bryan
