What's more, while grass-fed beef is lower in fat, and milk without chemicals is clearly a good idea, it's less obvious that organic fruits and vegetables have a nutritional edge to speak of. A 2009 study in the American Journal of Clinical Nutrition led to a firestorm in the food world. It found no difference between organic and conventional produce with regard to all but three of the vitamins and other food components studied, and conventional produce actually squeaked past organic for one of those three. (See the results of a farm vs. supermarket taste test.) (5)