In the U.S., there are about 80,000 registered chemicals. Of these, only a few hundred are actually tested for safety, and even that testing is considered inadequate by most toxicologists. Part of the problem is that most chemicals are tested in isolation. In real world application, however, most chemicals are combined with others, and the few studies done on synergetic effects reveal even nontoxic chemicals can become toxic when mixed together.

While there are many sources of chemical exposure, our food is a significant one, as most conventionally farmed foods are sprayed with pesticides. The chemical industry would have you believe pesticide residues on food is of no major concern. Learn more at mercola.com