The recommended dose for dental cavity prevention is 6-10 grams per day. For those with temporomandibular joint dysfunction (TMJ) and have difficulty chewing, Xylitol candy should be used instead of chewing gum. At high dosages Xylitol can cause diarrhea in children at 45 grams per day and 100 grams per day in adults.
To be effective, xylitol needs to be used daily on an ongoing basis and its use does not replace brushing and / or flossing. Brushing and Flossing are part of maintaining overall dental health. Children need to brush daily with a fluoride toothpaste and will also benefit from the use of an over the counter fluoride mouthrinse. Xylitol can be added to our dental arsenal tool kit in the fight against dental decay. It is this long term daily compliance use which is the only drawback. The primary source of xylitol is candy and gum. To be therapeutic the dosage of xylitol is most important, around 6 to 10 grams of Xylitol per day.
The amount tolerated varies with individual susceptibility and body weight. Most adults can tolerate 40g per day. When reading the product label, Xylitol should be the first sugar listed and, ideally, the only sugar included.