A polyalcohol found naturally in fruits, vegetables, and mushrooms. It is naturally sweet, but unlike sugar and some artificial sweeteners, it actively fights against infection. Some studies suggest that xylitol could help to prevent yeast infections when included in personal lubricants. However, more research is necessary to verify this claim.

Xylitol is safe for diabetics, and it is commonly used as a sweetener for medicines, chewing gums, and in various other applications. Extremely high doses of xylitol can cause some side effects, including bloating, gas, and other short-term intestinal issues.