A product label can have the word "organic" on its label if it made of at least 70% organic ingredients. It cannot have the USDA or EU organic label unless it's at least 95% organic. If a product is made up of less than 70% organic materials, the word "organic" can only be next to the ingredient in the "ingredients" section of the label, and it cannot be used on the main part of the product label.
Many people are surprised to find out that a food with the EU or USDA organic stamp can still contain up to 5% unnatural products. This was true for me, too. The best way to find out if your organic product is truly organic is to get to know the company that makes it. Many organic producers have websites or offer tours of their facilities. It's a great way to learn about your favorite products.
**images courtesy of Flickr Creative Commons