The Chemistry of Sugar Alcohols and Your Blood Sugar
The Chemistry of Sugar Alcohols and Your Blood Sugar
The Chemistry of Sugar Alcohols and Your Blood Sugar
Sugar alcohols are a type of carbohydrate that have gained popularity in recent years due to their potential health benefits. They are commonly used as sugar substitutes in foods and beverages, particularly for individuals with diabetes or those following a low-carb diet. But what exactly are sugar alcohols, and how do they affect blood sugar levels?
What are Sugar Alcohols?

Sugar alcohols are a group of carbohydrates that have a similar taste and texture to sugar but are not technically sugars. They are called "alcohols" because they have an alcohol group (-OH) in their chemical structure. The most common sugar alcohols are xylitol, sorbitol, mannitol, and erythritol.
How Do Sugar Alcohols Affect Blood Sugar?
Sugar alcohols are digested differently than regular sugars, which can affect blood sugar levels. When sugar alcohols are consumed, they are not fully absorbed by the body and are instead fermented by gut bacteria, producing short-chain fatty acids. This process can lead to a slower and more gradual increase in blood sugar levels compared to regular sugars.
The Glycemic Index of Sugar Alcohols
The glycemic index (GI) is a measure of how quickly a food raises blood sugar levels. Sugar alcohols generally have a lower GI than regular sugars, which means they can help regulate blood sugar levels. Xylitol, for example, has a GI of 7, while sorbitol has a GI of 9. In contrast, glucose has a GI of 100.
Examples of Sugar Alcohols and Their Glycemic Index
- Xylitol: 7
- Sorbitol: 9
- Mannitol: 65
- Erythritol: 0
- Isomalt: 10
- Maltitol: 35
How to Use Sugar Alcohols in Your Diet
Sugar alcohols can be a useful addition to a low-carb diet or for individuals with diabetes who need to manage their blood sugar levels. They can be used as a sugar substitute in recipes or as a sweetener in beverages. However, it's essential to note that sugar alcohols can still contribute to calories and should be consumed in moderation.
Conclusion
Sugar alcohols are a type of carbohydrate that can affect blood sugar levels in a different way than regular sugars. With their lower glycemic index and slower digestion, they can be a useful tool for managing blood sugar levels. However, it's essential to consume them in moderation as part of a balanced diet. By understanding the chemistry of sugar alcohols and how they affect blood sugar levels, individuals can make informed choices about their diet and take steps towards better managing their blood sugar levels.