At a rough guess, using the word "organic" on a product allows the seller to raise the price by 15% I have just opened a carton of milk with brand name "Organic Valley", whatever that means. If the FDA has any rules about the usage of the word, I'm not aware of it. It sounds sexier than the phrase "No artificial ingredients."
I am so turned off by what seems to be a fad that when I'm in a store, and there's an option, I tend to choose the product that is not carrying the "organic" label.
I empathize with those who suffer from food allergies, but I am omnivorous, content to trust that the FDA will ban any unsafe edible item.