Viscous fibers, such as fenugreek galactomannan form a viscous colloidal dispersion in the gastrointestinal tract when consumed. This slows gastric emptying and the digestion and absorption of nutrients. Delayed gastric emptying provides individuals with an increased and sustained feeling of fullness and satiety. Delayed nutrients absorption, particularly glucose, also reduces the glycemic index of food consumed. This helps individuals maintain healthy blood sugar levels.