Where Does Blue Food Dye Come From?

Didya know? The blue colorant/chemical [indigotine/blue #2]used to dye your blue jeans maybe used in your blue M&M Candies? I didn't know that. Read this in SCIENTIFIC AMERICAN--www.sciam.com. Let's go look and see. ok? That's where I found this post. Click here...http://www.sciam.com/article.cfm?id=where-does-blue-food-dyePhoto by Spills by Victoria-Ann