The FDA isn’t going to ban them just because they’re dangerous. The problem is that we consume these chemicals. dyes, etc in such small amounts that it is difficult to measure whether or not they are harmful to us. The FDA cannot ban the use of those chemicals without proof of their harmfulness The companies that make these foods and put the chemicals in them do so because it’s a cheap way to produce the food. The companies are not going to give up their precious food chemicals without a fight if the FDA did try to ban them. Banning is not a magical, automatic act. The FDA must lobby for legislation to be passed. Passing legislation is a long and difficult process. It doesn’t happen over night.