Toothpastes can contain gluelike substances, systemic poisons, and industrial strength detergents. Why do you think the FDA requires toothpastes with fluoride in them to contain poison warning labels? Because it is unsafe, and if flouride can kill a child, think about what it can to do to you over time. The ingredients in most of the toothpastes on your typical grocery store shelf can cause: Oral Cancer, mouth ulcers, inflamed tissue, acid reflux, diabetes, thyroid malfunction, and discolored teeth.