6 Benefits of Xylitol on teeth and side effects

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Discover the 6 shocking health benefits of Xylitol and side effects.

Xylitol is a sugar-like substance that is used as a sweetener for beverages, in chewing gums and candies that do not contain sugar.

It has 40% fewer calories than sugar and is scientifically proven to reduce the risk of tooth decay by 30% to 85%.6 shocking health benefits of Xylitol


In the following article, we will talk about its benefits, various uses, and possible side effects for the health of its consumers.

What is xylitol?

Xylitol is a polyol or sugar alcohol, a chemical compound formed by mixing a sugar molecule with an alcohol molecule.

It is characterized by a sweet taste very similar to that of sugar, but with the advantage of having a reduced amount of calories.

Note: Specifically, xylitol contains 40% fewer calories than conventional sugar. Xylitol can be extracted from birch or from a plant fiber called xylan, and although it is technically a carbohydrate (sugar), it does not alter blood glucose.

For these reasons, many food products use it as a substitute sweetener for sugar to market their “light” versions since it is low in calories and carbohydrates.


Therefore, its presence is frequent in the ingredient lists of many chewing gums, candies, sweets, and even toothpaste.

Health benefits of xylitol

Xylitol is a substance that, in addition to favoring diets and people with diabetes, confers a variety of health benefits for consumers.

They will be mentioned and explained below for your recognition and understanding.

1. Benefits of xylitol for cavities

Tooth decay is a disease caused by bacteria that live in the mouth. It consists of the destruction of the teeth by drilling them and can cause the fall of the teeth.

According to several studies, chewing xylitol gum can help prevent and treat this ailment that already affects about 5 billion people. The principle of action of xylitol against cavities is as follows: (1)

•Inhibits bacterial growth, mainly Streptococcus mutants bacteria, in saliva and biofilm.

•Improves salivary flow.

•Avoid inflammation of the gums.


•Reduces the adherent effect of microorganisms.

•Prevents demineralization of tooth enamel by reducing acid production.

Oral bacteria feed on the remains of food that remain between our teeth, especially glucose. However, with xylitol something different happens: bacteria ingest it, but cannot use it to produce the energy that allows them to live.

In other words, xylitol collapses bacteria preventing them from absorbing glucose and this ends up causing their death. (2)

To highlight: Various scientific investigations have revealed that the consumption of gum with xylitol can reduce malignant bacteria between 30 and 80% and cavities between 30 and 85%. (3)

2. Benefits of xylitol for diabetes

Xylitol does not contain fructose, so it does not negatively influence blood glucose and insulin levels.

To highlight: It does not produce spikes in glucose and insulin, does not contribute to insulin resistance, and does not increase the risk of metabolic diseases.

In this way, it can be stated with complete confidence that xylitol is a 100% safe substance for people suffering from diabetes.


Likewise, it is important to highlight the large difference in the glycemic index (how quickly a food causes spikes in glucose) that exists between xylitol and conventional sugar :

Xylitol: 7.


Conventional sugar: 60-70.

Note: Some studies in rats have revealed promising results regarding the efficacy of xylitol as a treatment for the improvement of diabetes or the reduction of abdominal fat. (5)

3. Prevents otitis in children

Otitis is an inflammation of the ear caused by an infection with the bacterium Streptococcus pneumonia.

It is a very common condition in children of school age and lactation that causes severe pain, fever, and hearing disorders.

Xylitol inhibits bacterial growth through a mechanism similar to that explained above in the case of caries.

It collapses the bacteria preventing them from absorbing glucose and this ends up causing their death. (6)


To highlight: According to experts, 5 daily doses of 8-10 g of xylitol in the form of gum or syrup can reduce cases of acute otitis media in children by up to 40 %. (7)

4. Benefits of xylitol for skin aging

Collagen is a type of protein that our body produces in large quantities and is essential for the resistance, elasticity, and regeneration of tissues.

Note: It is found in all the tissues in which it serves as a support framework, mainly in the skin and bones, and its weakening over the years is one of the causes of the appearance of wrinkles.

There is some evidence from scientific studies in rats that xylitol increases the production of collagen and therefore helps to delay the appearance of wrinkles and the loss of elasticity of the skin. (8)

5. Benefits of xylitol for osteoporosis

Osteoporosis, a very widespread disease in Western countries, is characterized by the deterioration of bone tissue and is very common in older women.

According to some studies carried out in rats, the use of xylitol can increase bone volume and bone mineral content, which translates into a lower risk of developing osteoporosis. (9)

6. Improves intestinal flora

By consuming xylitol, it reaches the small intestine intact as if it were fiber. The gastric enzymes present in the stomach cannot metabolize it and, in this way, it manages to reach the small intestine where the intestinal bacteria partially break it down. (10)

To highlight: It serves as food for the benign flora of the intestine, a positive aspect for our digestive health.


How to use xylitol

Its application has a wide variety, being possible to use it as a substitute in food products, desserts, and recipes, even in bread because it is a sugar that does not ferment.

It is also recommended for making products such as pastes and mouthwashes, as well as pharmaceutical products, making it ideal for users who cannot ingest any other type of sugar.

Side effects of xylitol

In general, xylitol poses no health risks and is very well tolerated by most people. However, it can present some adverse effects when ingested in large quantities, but they stop when its use is discontinued :



Abdominal bloating (bloating)

Be cautious with its consumption, take it in moderate and progressive amounts, and be sure that your body will not experience any negative effects.

Note: Avoid xylitol if you have irritable bowel syndrome or are intolerant to indigestible carbohydrates (FODMAP).


Key Findings

Xylitol is a sweetener used in products that usually contain sugar, seeking to reduce the calories it provides and to replace it for people who cannot consume it.

It does not ferment so it does not allow the appearance of bacteria that favor the appearance of cavities. Xylitol should not be consumed in high amounts as it can lead to a laxative effect.

The use of this sweetener allows certain benefits in the body due to its nature and its active components.

It is a substance that allows the production of products that would be considered “lights” in the market due to the users to whom they are directed


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