Another chemical to consider is Aspartame. It's routinely used as a dietary supplement in most sugar free sodas. It's banned in some countries because of its harmful health effects, cancer being one. Of course, Monsanto disclaims this.
I believe the growing number of health problems we are seeing are a result of chemicals being used with little regard for human life.

Got a photo from a speeding camera in the mail. I immediately sent it back - way too expensive and really poor quality.