This sugar substitute is indeed effective for decreasing dental cavities when used properly. Early evidence suggests that it might also help prevent ear infections in young children, although more research is necessary to confirm these findings.
(Click Does Xylitol Work? for more information.)
There are no clearly established dosing guidelines for xylitol, although some information about dosing is available based on clinical studies and practical experience (click Xylitol Dosage for more information).
Although it is a "natural" product, xylitol can still cause side effects. Some of the more commonly reported side effects (especially with high doses) include:
(Click Xylitol Side Effects to learn more, including potentially serious side effects you should report immediately to your healthcare provider.)
This sugar substitute is not known to interact with any medications (see Xylitol Drug Interactions).