Not if you drink coca cola, which is even listed in medical books as a way to disolve it. You might get IR though :)

Which would neutralize the effect of the hair on your teeth! I guess there's no free lunch. ;)

I don't think there's a need to consume it, this looks like a topical application.

What's IR?

I think GP is referring to Insulin Resistance

Coca cola is also good at dissolving teeth - makes it quite counterproductive.

Which you then spit out like chewed up gum.

no one said to swallow it silly!