we just started using the Bite tooth "pills/tabs." I guess they call them "bits."

From the website the ingredients are below. Anyone know what, if any harm, these ingredients would have on the environment? Most of these ingredients are actual food/food products so those would be edible/swallowable. Though we don't eat guar gum (or any gums) normally, the amount in a bit may be negligible if swallowed.

XylitolRepels cavity-causing bacteria and is naturally sweet.

ErythritolPrevents cavity-causing bacteria from making a home in your teeth.

Calcium CarbonateActs as a mild abrasive that helps clean and polish your teeth.

Sodium Cocoyl GlutamateThis helps your bites foam up and clean your teeth.

Sodium BicarbonateHelps balance PH levels in your mouth.

Guar GumMade from legumes, this helps keep our Bits together.

Natural Mint FlavorMakes your breath and your Bits taste clean and fresh.

Nano-Hydroxyapatite nHApHelps fight sensitivity and remineralizes your tooth's enamel.