Does this item contain titanium dioxide, or any titanium whatsoever?

I just called Spry today, 4/24/18 at 877-599-5327. There is NO titanium dioxide or any other form of titanium in their gum, nor is there talc. This is true for all flavors. This is a product without chemical or toxic ingredients. Call them and see for yourself.

where is the xylitol sourced? China?

Spry gum is made in China. The xylitol they use is also sourced in China. In fact, all Xlear products are made in China. We had been using Spry gum, but have switched to Therabreath mints, since all of their product are made in the US. The crazy thing is, we found Spry mints to be much more expensive than Therabreath, go figure. 100 Therabreath mints are a fraction of the cost of Spry. The Therabreath flavors are limited, but at least they are made in a location that has better quality control standards. Hope this helps.

how many gram of xylitol is in each peice of gum?

0.9g per the nutrition facts on the box

Why the big prop 65 warning?

First let me say, that as someone who reads labels, and makes health a priority, I'm not worried about the Prop. 65 label on the Spry gum. Prop. 65 was established in 1986 in California. It's been used as an income generator for the state through lawsuites, and there is no penalty in California for posting unnecessary warning signs. I like the idea of regulation of our food and products, but this system is flawed. Many of the substances on the list are naturally occuring in the environment. If the product has a 1 in 100,000 chance over 70 years of causing cancer, it goes on the list, as well as those that people can add without penalty as I stated earlier. We all know that saccharin in Sweet N Low is a toxic chemical, but it is not on the list. Did the company pay enogh to keep it off the list?? The idea of the list is fantastic, but the regulations of this list are inconsistant. Just my humble opinion.