Now Inulin Prebiotic Pure Powder Organic Inulin, a fructooligosaccharide (FOS), is a soluble prebiotic fiber that is resistant to digestion and reaches the large intestine. Intestinal probiotic bacteria consume Inulin and in turn, produce the short-chain fatty acids that nourish the cells lining the colon. Inulin helps to maintain intestinal health and function. Inulin has a pleasant flavor that adds a mild sweetness to foods and drinks, but has a very low glycemic index and will not negatively impact serum glucose levels. Recommended Use: Take 1 level teaspoon 1 to 3 times daily, or as directed by a healthcare professional. Mix into your favorite beverage or food. Begin with 1 teaspoon a day and slowly increase dosage to limit GI discomfort. Store in a cool, dry place after opening.