When making gummy supplements, manufacturers choose sweeteners to hit calorie, texture, and label targets. Sugar alcohols like maltitol, xylitol, or sorbitol often replace sucrose, and each one brings a different set of tradeoffs.
Key Reasons for Using Sugar Alcohols
1. Lower Sugar and Calories
The body only partly absorbs sugar alcohols, so they carry fewer calories per gram than sugar. That enables sugar-free labeling (defined by FDA as under 0.5 g of sugars per serving), along with no added sugar and reduced sugar claims. Low sugar and low carb are not FDA-defined claims, so a brand that uses them must support what they mean.
2. Better for Your Teeth
Sugar alcohols don't feed the mouth bacteria that turn sugar into tooth-decaying acid. FDA has authorized a health claim: a sugar-free food sweetened with a listed sugar alcohol can state that it does not promote tooth decay.
3. Gentler on Blood Sugar
They have a lower glycemic index than sucrose, around 65, so they cause a smaller, slower rise in blood sugar and insulin. Formulators use them when a product needs a gentler blood sugar response.
4. Texture and Stability
Beyond sweetness, they add the bulk and chewy mouthfeel sugar would have provided. Sorbitol is a strong humectant that keeps gummies soft on the shelf; xylitol and erythritol pull far less water, so formulators pick among them.
A Note on Digestive Tolerance
Because they are only partly absorbed, sugar alcohols can cause gas, bloating, or a laxative effect in some people. FDA treats that risk as a labeling requirement: a food that could deliver more than 50 g of sorbitol or 20 g of mannitol a day must carry an excess-consumption warning.
Choosing Between Maltitol, Sorbitol, Xylitol, and Erythritol
They are not interchangeable. Maltitol is closest to sugar in taste and texture but has the highest glycemic index of the group, around 35. Sorbitol is about 60% as sweet, so a formula needs more of it. Xylitol matches sugar's sweetness but is toxic to dogs, dropping a dog's blood sugar within 30 to 60 minutes if eaten. Erythritol is 60 to 80% as sweet, low-calorie, and near zero on the glycemic index.
At the right level, a sugar alcohol keeps a gummy's familiar chew while cutting sugar and calories; the tradeoff is digestive tolerance.