I've been warning about the dangers of processed foods for many years now. Today an article on the dangers of a common food additive, titanium dioxide, caught my attention. Titanium dioxide is used widely by the food industry as a coloring agent. Titanium oxide, also known as Ti02, is extracted from certain rocks mines around the world. When purified, Ti02 makes an excellent pigment for paint, paper, and plastic. Over 4.6 million tons of Ti02 are produced annually around the world. So what does this have to do with food?