Relative to a lot of other things that people should be concerned about, titanium dioxide in my mind, is really low on the list. I would be more worried about some substitutes that people are using for titanium dioxide that don't have decades of research associated with it, said Westerhoff.

Typically, this mineral is produced in two forms. The primary type is pigment-grade titanium dioxide, which utilizes its pigment to provide a look of sensitivity and brightness.

Titanium dioxide in food is used in a variety of products as a color enhancer. The most common foods containing titanium dioxide include: