Inulin is high in fiber and low in calories. It also has other health benefits.
The fiber in inulin is soluble, which means it dissolves in water. It dissolves in the stomach and then forms a gelatinous substance that slows digestion, increases fullness and reduces cholesterol absorption as it passes through the digestive tract.
Inulin also slows digestion, including the digestion of carbohydrates. This allows sugar to be released slowly without spiking, which promotes healthy blood sugar levels.