Xylitol: The Best Weapon Against Dental Decay

Updated on July 20, 2018
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I'm a dental hygienist, pyrography artist, avid gardener, writer, vegetarian, world traveler, and many other things!

Xylitol is the best weapon against dental decay
Xylitol is the best weapon against dental decay | Source

What is Xylitol?

Xylitol (zye'lit-awl) sugar naturally occurs in oats, berries, fruits, mushrooms, and hard woods like birch.

Most commercially manufactured xylitol is harvested from the xylem layer of birch bark or from corn. We also produce it in our bodies in small quantities.

Xylitol is sweeter than ordinary sugar, yet is safe for diabetics and does not contribute to cavities. In fact, it is the only natural sugar to be both non-cariogenic (does not cause cavities) as well as anti-cariogenic (actually prevents cavities from forming!)

It was discovered in the late 19th century simultaneously by German and French chemists. They found that xylitol did not affect insulin levels in the body, and it became popular in Europe.

In the 1970s, scientists in Finland found that xylitol also did not contribute to cavities. More recently (in the last 5-10 years) xylitol has finally caught on in the United States.

Xylitol is a non-fermentable sugar alcohol that has Glycemic Index of 7
Xylitol is a non-fermentable sugar alcohol that has Glycemic Index of 7

Xylitol Prevents Cavities!

Other than fluoride, there is nothing that claims to be anti-cariogenic--except xylitol. This means xylitol not only won't cause cavities, but it will prevent them from forming in the first place.

How does it work? Xylitol is what's known as a non-fermentable sugar alcohol. In other words, bacteria are not able to break it down or process it into lactic acid. This acid is what attacks your teeth and leads to cavities. Every time you sip a sugary beverage (milk, pop, juice, wine, beer), there is a 20-minute acid attack on your teeth. Xylitol stops this attack from happening by raising the oral pH.

A pH of above 7 allows teeth to remineralize (repair) enamel and protects teeth from further assaults. It also reverses the beginning stages of decay (white spot lesions).

  • With daily use, harmful bacterial colonies can be reduced by as much as 90%!

  • Xylitol raises the pH in the mouth to actually prevent cavities from forming and to help repair enamel and strengthen teeth.

  • The results are long lasting. Scientists believe that the benefits of xylitol consumption last permanently.


Xylitol is Safe for Diabetics!

No diabetics, you're not dreaming. Not only is xylitol sugar sweeter than normal table sugar, it's also safe for those living with diabetes.

Insulin is not required to break down this polyol sugar; therefore, there is very little to no change in blood glucose levels.

If you have diabetes, you'll be happy to note that many companies online make sweet treats using xylitol instead of sugar.

  • Absorbed slowly
  • Low glycemic index (GI = 7)
  • Zero net effective carbohydrates
  • Low calorie (1 tsp. xylitol = 9.6 cal.; 1 tsp. sugar = 15 cal.)
  • Does not contribute to high blood sugar levels
  • Does not contribute to hyperglycemia

Other Benefits of Xylitol

Though discovered in the late 19th century, xylitol didn't catch on until the 1970s when researchers in Finland found it had huge dental benefits. It's been used throughout Europe in gum, candy, and mints ever since.

The USA has only recently begun to dabble with xylitol sugar, used commercially mostly as an alternative sweetener in gum. However, it is available in health food stores, and there's a booming new xylitol trade online offering a wide range of products.

Xylitol has many positive uses
Xylitol has many positive uses | Source

Xylitol has grown in popularity in response to its usefulness treating the following conditions:

  • Osteoporosis - prevents weakening of bones
  • Ear Infections - prevents growth of bacteria in Eustachian tubes
  • Upper respiratory infections - prevents adherence of bacteria
  • Infection - increases activity of neutrophils (white blood cells)
  • Candida yeast - helps control / prevent oral candida infections
  • Metabolic syndrome - xylitol does not require insulin to metabolize

2D structure of Xylitol
2D structure of Xylitol | Source

Dosage & Delivery


The minimum recommended dosage for the prevention of cavities and remineralization of soft spots in enamel is 6 grams per day. Ideally this will be spread throughout the day, especially after meals and before bedtime.


Xylitol comes in many forms, perfectly fitting into everyone's lifestyle. There are bulk bags of xylitol sugar crystals, xylitol sugar packets, gum, candy, baked goods, mints, toothpastes, and mouthwashes.


Warnings & Other Information


Excessive consumption of xylitol (65 grams in one day) can lead to explosive diarrhea, but no other symptoms have occurred in double-blind research studies.

Xylitol is not safe for dogs.

Cooking & Baking:

Xylitol shares a 1:1 ratio with sugar, meaning there's no need for adapting the recipe for sweetness. However, it does absorb liquid more than sugar. Xylitol will not make yeast rise, so it's not for use in breads.

Were you aware of all the health benefits of xylitol?

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This content is accurate and true to the best of the author’s knowledge and does not substitute for diagnosis, prognosis, treatment, prescription, and/or dietary advice from a licensed health professional. Drugs, supplements, and natural remedies may have dangerous side effects. If pregnant or nursing, consult with a qualified provider on an individual basis. Seek immediate help if you are experiencing a medical emergency.

© 2011 Kate P


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    • profile image


      3 years ago

      I recently replaced some sugar in my diet with xylitol - can't do without a little bit of sweetness in my cuppa and my cappucino. Luckily I managed to hold on to my own teeth (age 68) and want to make sure that they serve me well for the next twenty years so am about to hop off the the health food store and buy some xylitol gum to chew after meals and snack. It's a shame that it wasn't available when my mother was alive - her acid reflux and mouth ulcers would have benefited.

    • profile image


      8 years ago

      there have more knowledge about xylitol Here:


      I hoped that i can help you out

    • Faceless39 profile imageAUTHOR

      Kate P 

      8 years ago from The North Woods, USA

      Thanks for your comments, all. I'm surprised xylitol isn't in every grocery store yet. Why is it so hard to find? Glad I could give you a cure for your diabetic sweet tooth. It's low in calories, too!

    • profile image


      8 years ago

      Great Article! I am marrying a diabetic and I am borderline myself. Plus I am on quest to die with as many of my own teeth as possible and I think I am succeeding so all help is appreciated.

      I have never heard of Xylitol here in Europe but have added it my shopping list to look for it today and it will be a staple in my cupboards as soon as I hit home ground. Thanks for the education.

    • krosch profile image


      8 years ago

      Thanks you to you I have a big jar of this wonderful stuff sitting in my kitchen. Great article!

    • instantlyfamily profile image


      8 years ago

      What an interesting read, indeed. I am forwarding this Hub to family and friends and voting UP.

    • Seeker7 profile image

      Helen Murphy Howell 

      8 years ago from Fife, Scotland

      OMG!!! And I was only joking as well! LOL! Many thanks for both these links - will definitely be checking them out!

    • Faceless39 profile imageAUTHOR

      Kate P 

      8 years ago from The North Woods, USA

      Seeker7, thanks so much for your awesome feedback. And guess what I found? I can't believe I never looked before, but check this out!!

      Xylitol Chocolate!


      Xylitol Caramels!


      It's expensive chocolate, but is vegan and non-GMO. :)

    • Seeker7 profile image

      Helen Murphy Howell 

      8 years ago from Fife, Scotland

      Another fascinating hub!

      I do use Xylitol gum quite a lot but wouldn't it be great if they could put the sugar in chocolate bars!!!! I didn't know you could also get the toothpaste and mouth wash - I'll need to look out for that.

      Voted up + awesome!


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