'Sweet Life' make a chewing gum using Xylitol as the only sweetener. I have bought some to see what it's like. I'm not a regular gum user so I can't really compare but the flavour dissapears fairly quickly after chewing a while. Having said that, the flavours are pleasant enough while they last - spearmint, peppermint and a fruity one that I find sort of like a tropical flavour as opposed to the commercial 'juicy fruit' which I use to like. They are available online and seem to ship promptly - though mine arrived while I was away and it was poorly packed - the end of the postpack was no longer sealed when a neighbour collected it for me. They also sell bulk xylitol for those wanting to cook with or use it for drinks etc. I don't completely recall the prices but I remember working it out at the time compared to the 500gm I saw at the local Health food store. 1kg of it online was cheaper than the 500gm in the shop - even with shipping - if you buy enough at once. Still expensive but a better way to buy if you want to use it.