Polyols: what they are and how to use them
🍬 What are polyols?
Polyols, also known as sugar alcohols, are sweetening substances belonging to the carbohydrate family. They are found naturally in small amounts in some fruits and vegetables, but are also used as ingredients in sugar-free, low-sugar products or those designed for a more controlled diet.
They have a sweet taste similar to sugar, but generally provide fewer calories and have a lower glycemic impact than traditional sugar.
Among the most common polyols are:
- erythritol
- xylitol
- sorbitol
- maltitol
- isomalt
Sweetening polyols are widely used in chewing gum, sugar-free candies, baked goods, creams, snacks, desserts, and table sweeteners.
They are not all the same: they differ in sweetening power, calories, intestinal tolerability, performance in recipes, and impact on final taste.
For daily use in cooking, one of the most interesting polyols is erythritol, valued because it sweetens without sugar and with a very low caloric intake.
On Over Low Carb, you can find OK Green, a sweetener based on erythritol and stevia, designed for drinks, yogurts, creams, desserts, and doughs.
💡 Why are polyols used?
Polyols are chosen mainly because they allow sweetness to be achieved without using traditional sugar.
They are interesting for those who want to reduce sugars and carbohydrates in daily cooking, for those following a low-carb or ketogenic diet, or for those looking for sweeteners more suitable for preparations without added sugars.
Their main advantage is not to "work miracles", but to offer a practical solution for sweetening with more control.
✅ 1. Polyols and glycemic index
Polyols generally have a lower glycemic index than sugar.
This means that, all else being equal, they tend to have a more contained impact on glycemic response compared to sucrose. This is why they are often used in sugar-free or reduced-sugar products.
Some indicative examples:
- erythritol: very low glycemic index, often indicated as close to 0;
- xylitol: low glycemic index;
- sorbitol: low glycemic index;
- maltitol: higher glycemic index than other polyols, but still lower than sugar.
However, be careful: this does not mean that all polyols are equivalent, nor that a product with polyols is automatically suitable for every dietary need.
Those following a strict ketogenic diet, a specific nutritional plan, or having particular metabolic conditions should always evaluate ingredients, quantities, and overall nutritional values of the product.
✅ 2. Fewer calories than sugar
Compared to sugar, many polyols provide fewer calories.
Indicatively:
- erythritol: approximately 0.2 kcal per gram;
- xylitol: approximately 2.4 kcal per gram;
- sorbitol: approximately 2.6 kcal per gram;
- maltitol: approximately 2.1 kcal per gram.
Traditional sugar provides approximately 4 kcal per gram.
This makes polyols interesting when you want to reduce the caloric intake associated with sweetness, without completely eliminating the sweet taste from drinks, desserts, or homemade preparations.
✅ 3. Polyols and dental health
Unlike sugar, polyols are not utilized by mouth bacteria in the same way.
This is why they are often present in chewing gum and sugar-free candies.
Xylitol, in particular, is one of the most well-known polyols in this area, but other sugar substitutes are also used in products designed to reduce teeth's exposure to fermentable sugars.
The important point is this: replacing sugar with polyols can be useful in a more careful dietary strategy, but it does not replace oral hygiene and normal good daily habits.
🧬 Polyols, intestine, and microbiota
Polyols are not all absorbed in the same way.
A portion can reach the intestine and, depending on the type of polyol and the amount consumed, can be fermented by intestinal bacterial flora.
For some people, this can be well tolerated. For others, especially if sensitive or consuming high amounts of polyols, bloating, flatulence, cramps, or diarrhea may occur.
This is one of the reasons why polyols should be used with common sense.
They should not be considered "sugar without consequences": they are useful ingredients, but quantity matters.
⚠️ Polyols: side effects and moderation
Polyols can have gastrointestinal effects if consumed in high quantities.
The most common problem concerns the laxative effect, especially with some polyols and in more sensitive individuals.
For this reason, food products containing more than 10% added polyols are required to carry the warning:
"Excessive consumption may produce laxative effects."
This is not a phrase to ignore. It is a useful indication for consuming these products correctly.
The practical rule is simple: it's best to start with small quantities and assess your individual tolerance.
🍰 Polyols in sugar-free sweeteners
Polyols are widely used in sugar-free sweeteners because they allow sweetness to be achieved with fewer available sugars.
In low-carb cooking, they can be useful for:
- sweetening coffee, tea, and beverages;
- preparing yogurt, creams, and desserts;
- making low-carb sweets;
- reducing or replacing sugar in some recipes;
- creating preparations more suitable for a low-carbohydrate diet.
However, one thing must be remembered: sugar not only provides sweetness. In many recipes, it also contributes to volume, structure, moisture, color, and caramelization.
Therefore, polyols can replace the sweetness of sugar, but they cannot always perfectly replace all its technical functions.
🟢 Erythritol: the most interesting polyol in low carb
Among polyols, erythritol is one of the most widely used in the low-carb and keto world.
It is appreciated because it has a very low caloric intake, contains no sugars, and has a generally cleaner taste than other sweeteners.
Compared to other polyols, erythritol is often preferred for:
- hot and cold drinks;
- yogurt;
- creams;
- desserts;
- low-carb sweet preparations;
- doughs and homemade recipes.
Of course, erythritol must also be dosed correctly. Using too much can alter the final taste or give a fresh sensation in the mouth, typical of some polyols.
🛒 Polyols and Over Low Carb products
In our e-commerce, we offer selected low-carb sweeteners for those who want to reduce sugars and carbohydrates in daily cooking.
An example is OK Green, a sweetener based on erythritol and stevia, with 0 kcal per 100g, 0g of sugars, and 100g of polyols per 100g.
It is suitable for drinks, yogurts, creams, desserts, doughs, and more technical preparations.
You can also find other products in the Sugar-Free Sweeteners collection, designed to complete your daily low-carb pantry.
They are not artisanal products like our pasta or pizza bases, but they are part of the same idea: less sugar, more control over ingredients, and more freedom in everyday cooking.
❓ Frequently asked questions about polyols
Are polyols sugars?
No. Polyols are sweetening substances belonging to the carbohydrate family, but they do not behave exactly like traditional sugar.
They have sweetening power, but generally provide fewer calories and have a lower glycemic impact than sucrose.
Are polyols suitable for a low-carb diet?
They can be useful in a low-carb diet, especially when used to replace sugar in drinks, creams, desserts, or homemade sweets.
The important thing is to always check the type of polyol, the amount used, and the nutritional values of the final product.
What is the difference between erythritol and maltitol?
Erythritol and maltitol are both polyols, but they have different characteristics.
Erythritol has a very low caloric intake and is widely used in the low-carb world.
Maltitol has a sweetening power close to sugar, but also has a more significant caloric and glycemic impact compared to erythritol.
For this reason, in low-carb or ketogenic diets, erythritol is often preferred over maltitol.
Can polyols cause intestinal discomfort?
Yes, especially if consumed in large quantities or by sensitive individuals.
The most common effects can be bloating, flatulence, cramps, or a laxative effect.
Therefore, it is best to use polyols in moderation and gradually increase the quantities only if well tolerated.
Which polyol sweetener can I use in cooking?
It depends on the use.
For drinks, yogurt, creams, desserts, and doughs, you can use a sweetener based on erythritol and stevia like OK Green.
To choose the most suitable product, evaluate the format, sweetening power, taste, ingredients, and type of recipe.
❤️ Conclusion
Polyols are interesting sweeteners for those who want to reduce sugars and carbohydrates without completely giving up the sweet taste.
They are not magic ingredients and should not be used indiscriminately, but they can be useful in daily cooking, especially if carefully integrated into a low-carb or ketogenic diet.
Among the most well-known polyols, erythritol is one of the most appreciated for its low caloric intake and versatility.
The important thing is to choose the right sweetener, use it in correct quantities, and remember that in low-carb, it's not just about removing sugars or carbohydrates.
It's also about what you put in their place.