This is far from the only study that's been done on the matter: http://en.wikipedia.org/wiki/Genetically_modified_food_controversies#Present_knowledge_on_GM_fo

This is far from the only study that's been done on the matter: http://en.wikipedia.org/wiki/Genetically_modified_food_controversies#Present_knowledge_on_GM_food_safety http://en.wikipedia.org/wiki/Genetically_modified_food_contr... "However, an article in 2007 by Vain found 692 research studies focusing on GM crop and food safety and identified a strong increase in the publication of such articles in recent years" Though the veracity (and funding sources) of said studies is a different matter entirely.