Dosing for Adults:
For optimal anti-cavity protection, research suggests that an adult needs to consume somewhere between 7 to 10 grams of xylitol each day.
That's not really very much. For example...
1) You could just sprinkle granular xylitol (about 2 teaspoonfuls per day) on or into the foods and beverages that you normally eat and drink.
2) If you like the idea of using prepared xylitol products as your source, as few as 7 to 10 mints, or pieces of candy or gum, may be all that's needed.