Anyone heard of xylitol?

Ben has just eaten half a packet of soothers - i googled it and they are safe (nice breath and purple poo apparently!), but found information that said make sure they dont contain xylitol (they dont). I looked it up,and apparently it is really toxic to dogs. Seems it is only in some chewing gums but thought id share as id never heard of this before.

it's on our dangerous foods list , can be used quite widely as a sweetener

yes that's why you need to be careful if your dogs a scavenger and like to pick up old chewing gum .
nasty stuff for your pooches

It Is an artificial sweetener used in chewing gums and also in sweetener for drinks etc