How many calories are in a teaspoon of xylitol?

Xylitol is a sugar alcohol that is used as a sugar substitute. It looks and tastes like sugar, but has fewer calories. Xylitol is found naturally in some fruits and vegetables, and can also be manufactured. It is commonly used in sugar-free gum, candy, baked goods, and oral health products like toothpaste. Understanding the calorie content of xylitol can help people monitor their calorie and sugar intake. This article will provide a detailed look at how many calories are in a teaspoon of xylitol.

What is Xylitol?

Xylitol is classified as a sugar alcohol or polyol. Its chemical structure is similar to sugar, but slightly different. This difference prevents xylitol from being fully broken down and absorbed by the body. Xylitol contains 2.4 calories per gram, while regular table sugar contains 4 calories per gram.

Some key facts about xylitol:

– Xylitol has a sweetness similar to regular sugar but contains fewer calories per gram. It has about 40% fewer calories than sugar.

– It does not increase blood sugar or insulin levels as much as regular sugar. Therefore, it has a minimal effect on blood sugar and insulin levels.

– Xylitol is not fully broken down during digestion. It is only partially absorbed by the body (about 50%).

– Since it is only partially digested, xylitol has 30-40% fewer calories than sugar per gram.

– Xylitol has been shown to help prevent cavities and promote dental health.

– The glycemic index of xylitol is very low (7), compared to regular table sugar (65).

– Xylitol contains zero fructose.

Xylitol Calorie Content

Since xylitol contains 2.4 calories per gram, we can calculate how many calories are in a teaspoon of xylitol:

– 1 teaspoon of xylitol weighs about 4 grams
– Xylitol contains 2.4 calories per gram
– So 1 teaspoon (4 grams) of xylitol contains:
4 grams x 2.4 calories/gram = 9.6 calories

Therefore, there are about 9-10 calories in a teaspoon of xylitol.

This is significantly lower than the calories in a teaspoon of regular white sugar, which provides about 16 calories per teaspoon (4 grams of sugar x 4 calories/gram = 16 calories).

Calorie breakdown for different measures of xylitol:

Xylitol Measure Grams Calories
1 teaspoon 4 grams 9.6 calories
1 tablespoon (3 teaspoons) 12 grams 28.8 calories
1 cup 120 grams 288 calories

Benefits of Xylitol

Some of the main benefits of xylitol compared to regular sugar include:

– Fewer calories and carbs – Xylitol only contains 2.4 calories per gram, vs 4 calories in sugar. This results in 40% fewer calories.

– Does not spike blood sugar – Xylitol has minimal impact on blood glucose and insulin levels.

– Tooth-friendly – Xylitol is non-fermentable and helps prevent cavities. It reduces cavity-causing bacteria in the mouth.

– Prebiotic effects – Xylitol may act as a prebiotic by feeding the good bacteria in the gut. This could improve digestive health.

– Low glycemic impact – Xylitol only raises blood sugar levels slightly compared to regular sugar. Its glycemic index is only 7 compared to sugar which is 65.

– Anti-inflammatory – Xylitol has been found to reduce inflammation levels in some animal studies.

– Bone health – Some research shows xylitol may increase bone volume and bone mineral content, improving bone density.

So using xylitol instead of sugar can provide a pleasantly sweet taste with reduced calorie intake and other health benefits. Just be aware that large amounts of xylitol can have a laxative effect.

Xylitol vs Other Low Calorie Sweeteners

How does xylitol compare to other popular low calorie sweeteners? Here is an overview:


– 2.4 calories per gram
– Sweetness similar to sugar
– Prevents cavities and ear infections
– Considered safe, though large amounts can cause digestive side effects


– 0 calories
– Extracted from stevia plant
– Up to 200-300 times sweeter than sugar
– Does not raise blood sugar or insulin levels
– Can have bitter aftertaste at high amounts

Monk Fruit Extract

– 0 calories
– Extracted from monk fruit/luo han guo
– 100-250 times sweeter than sugar
– Does not affect blood sugar or insulin
– Can be expensive


– 4 calories per gram
– 180-200 times sweeter than sugar
– Made from amino acids
– Controversy over health effects


– 0 calories
– 600 times sweeter than sugar
– Does not raise insulin or blood sugar
– May negatively impact gut bacteria

As you can see, xylitol provides some advantages over these other sweeteners when it comes to dental health and prebiotic benefits. It has more calories than stevia or monk fruit, but is lower than sugar or aspartame.

Using Xylitol in Cooking and Baking

Xylitol can be substituted for sugar in many recipes. However, keep these tips in mind:

– Use 3/4 cup of xylitol for every 1 cup of sugar called for in recipes. Xylitol is not as sweet as regular sugar.

– Reduce liquids in the recipe by 1/4 to 1/3. Xylitol does not caramelize or brown the same way as sugar.

– Add 1/2 to 1 teaspoon of baking soda per cup of xylitol used. This helps recipes rise properly.

– Reduce oven temperature by 25°F as items with xylitol can brown faster.

– Xylitol may not perform as well in recipes with yeast, since it does not feed yeast growth as well as sugar.

– Bake times may be slightly shorter when using xylitol instead of regular sugar.

So xylitol can be used in place of sugar in recipes, with some adjustments to amounts and methods. Be sure to check finished products earlier for proper doneness.

Xylitol Content in Common Foods

While xylitol is manufactured commercially, it also occurs naturally in small amounts in some fruits and vegetables. Here are some examples of xylitol content in foods:

Food Serving Size Grams of Xylitol
Raspberries 1 cup 0.012 grams
Strawberries 1 cup 0.031 grams
Cauliflower 1 cup 0.13 grams
Yellow plums 1 plum 0.037 grams

As you can see, the xylitol content from natural food sources is very small. To consume therapeutic amounts of xylitol, a person would need to eat large quantities of these fruits and vegetables.

Manufactured xylitol is added to products like chewing gum, breath mints, cough drops and nasal sprays. These contain significantly more xylitol per serving compared to natural sources. For example, one piece of xylitol gum may contain 1 gram of xylitol.

Is Xylitol Considered a Healthy Sugar Substitute?

Overall, xylitol is considered one of the more tooth-friendly and lower calorie sweeteners. It scores very low on the glycemic index scale and does not spike blood sugar or insulin compared to regular sugar.

Some key considerations:

– Xylitol can help prevent dental cavities and reduce cavity-causing bacteria. This makes it a smart choice for improving dental health.

– With 2.4 calories per gram, xylitol contains 40% fewer calories compared to table sugar. This can help reduce daily calorie intake.

– Xylitol does not raise blood sugar or insulin levels as dramatically as regular sugar. However, it still impacts blood glucose more than non-nutritive sweeteners like stevia.

– Xylitol may cause digestive side effects like gas, bloating and diarrhea when consumed in large amounts. Start with small amounts and increase slowly.

– There is controversy surrounding xylitol’s effects on dogs. Xylitol is thought to be toxic to dogs. Thus, products containing xylitol should be kept away from dogs.

So while xylitol has some benefits, it should still be used moderately as part of an overall healthy diet. Other no-calorie sweeteners like stevia and monk fruit may be better choices for those looking to restrict carbs and calories.

Xylitol Safety and Side Effects

Xylitol is generally well tolerated in humans when consumed in normal food amounts. However, there are some side effects to be aware of:

– Digestive side effects: Consuming large amounts of xylitol may cause digestive issues like gas, bloating, diarrhea and cramps. Start with small amounts and increase intake slowly.

– Allergic reactions: Though rare, some people may experience allergic reactions to xylitol. Symptoms include hives, swelling, wheezing and difficulty breathing.

– Hypoglycemia: There is a theoretical risk that large doses of xylitol could cause low blood sugar in susceptible individuals. This is most likely with doses over 50 grams.

– Dental erosion: While xylitol can help prevent cavities, some evidence shows overuse may erode tooth enamel over time. This occurs with extremely high intake amounts.

– Intestinal changes: Some studies in rats and mice show xylitol can alter absorption and gut microbiota. The relevance in humans is still unclear. More research is needed.

– Dogs: Xylitol is thought to be harmful to dogs as their bodies may mistake it for real sugar. It can cause insulin release and dangerous blood sugar crashes in canines. Keep xylitol out of reach from dogs.

When consumed moderately as part of a varied diet, xylitol appears safe for healthy adults and children over 2 years old. However, those with diabetes, gut conditions or on medications should consult their doctor before use.

Frequently Asked Questions

Here are answers to some common questions about xylitol:

Does xylitol have any calories?

Yes, xylitol does contain calories, but fewer than sugar. Xylitol has 2.4 calories per gram, compared to 4 calories per gram in sugar.

Is xylitol natural?

Small amounts of xylitol occur naturally in some fruits and vegetables. However, most xylitol used in commercial products is man-made, not extracted from natural sources.

Is xylitol safe for dogs?

No, xylitol should not be given to dogs. It can stimulate insulin release and cause dangerously low blood sugar in canines. Products with xylitol should be kept away from dogs.

Can xylitol spike blood sugar?

Xylitol has minimal effects on blood glucose and insulin compared to regular sugar. However, it can still raise blood sugar and insulin slightly more than non-nutritive sweeteners like stevia. People with diabetes need to be cautious with xylitol and monitor blood sugar closely.

Does xylitol contain carbohydrates?

Yes, xylitol is a carbohydrate. Most carbohydrates have 4 calories per gram, but because xylitol is not fully broken down and absorbed, it provides about 40% fewer calories at 2.4 calories per gram.

Is xylitol carcinogenic?

No, there is no good evidence that xylitol is carcinogenic or linked to cancer risk in humans. Xylitol does not appear to damage DNA or cause mutations.


In conclusion, a teaspoon of xylitol contains around 9 or 10 calories. This is much lower than sugar, providing a pleasantly sweet flavor with fewer carbs and calories.

Xylitol offers unique benefits for dental health, and research shows it may also support bone density and healthy digestion. However, overconsumption can cause digestive side effects.

When used instead of sugar, xylitol can be a tooth-friendly way to reduce calories and carbohydrate intake. But other no-calorie sweeteners like stevia and monk fruit may be better choices for those looking to restrict carbs and calories as much as possible.

As with any sweetener, moderation is key. Xylitol can be part of a healthy diet, but should not be relied on as a “magic bullet” for weight loss or health. Focus instead on overall balanced nutrition, calorie control, and lifestyle habits to meet health goals.

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