Food Coloring!

Ever wonder about food coloring? Probably not, but this article is interesting anyway... you'll learn interesting but useless facts like:

Blue No. 1 uses coal tar as one of its components.

It is possible to have an allergic to Blue No. 2.

Red No. 3 can cause sensitivity to light and learning difficulties, can increase thyroid hormone levels and lead to hyperthyroidism, and was shown to cause thyroid cancer in rats in a study in 1990.