Tartrazine (also known as "FD&C Yellow Number 5" or "E-102" in Europe) is a coal-tar derivative that is used to color foods, cosmetics, and other products. It is literally industrial waste. Tartrazine is also reputed to be a catalyst in hyperactivity/ADD, other behavioral problems, asthma, migranes, thyroid cancer, and lupus. With many children are being diagnosed as "hyperactive" these days. There is research that shows there could be a link (and that dietary changes can help.) Many of the children on Ritalin or other behavioral drugs may be eating a diet rich in harmful food additives that are approved by the government as safe. Some schools have noticed a major difference in pupils' behavior after banning snacks with tartrazine. Ref: Center for science in the public interest (http://www.cspinet.org/reports/chemcuisine.htm#Alphabetical) Yellow 5 Lake Adding â€œlakeâ€� after the name of a dye indicates that the dye is mixed with Aluminum Hydroxide. Aluminum hydroxide is safe as a food ingredient and often sold as an antacid. Mixing the Aluminum Hydroxide with Yellow 5 allows the manufacturer to color the surface of a solid and ensures that it will not run off easily if the product gets wet. See Yellow 5. FD&C Red Dye #40 Information, Education and Discussion. Web. 16 May 2011. .