Ingredient

Fos

Auto-generated content. This description was generated automatically and is pending editorial review. Inaccuracies are possible. Found a mistake? Contact us.

Source
Not animal-derived
Allergen
No
Role in food
Manufacturers add FOS to foods as a dietary fiber and a low-calorie sweetener. It …

What it is

Fructooligosaccharides (FOS) are a type of carbohydrate that acts as a prebiotic fiber. They are naturally found in foods like onions, garlic, bananas, and chicory root. FOS can also be produced commercially from sucrose using enzymes.

Why it's used

Manufacturers add FOS to foods as a dietary fiber and a low-calorie sweetener. It can also enhance the natural flavors of foods. FOS is often found in dairy products, baked goods, beverages, and confectionery.

Health notes

FOS is generally recognized as safe (GRAS) by the FDA for use in foods. As a prebiotic fiber, it can support the growth of beneficial gut bacteria. JECFA has evaluated FOS and established an acceptable daily intake. Some studies suggest potential benefits for gut health and mineral absorption, but more research is needed to confirm these effects.

Allergen info

FOS is not derived from any of the nine FDA major allergens. It does not contain gluten.

Products containing Fos

Compare products →
European Mediterranean Importing Co., Inc. Chocolate Caramel With Probiotics Bar, Chocolate Caramel Candy High in saturated fat — 30% DV per serving 367kcal 6.7Protein 30Fat 56.7Carbs European Mediterranean Importing Co., Inc. Chocolate Almond With Probiotics Bars, Chocolate Almond Snack, Energy & Granola Bars High in saturated fat — 25% DV per serving 407kcal 7.4Protein 33.3Fat 55.6Carbs European Mediterranean Importing Co., Inc. Chocolate Caramel With Probiotics Bars, Chocolate Caramel Chocolate High in saturated fat — 30% DV per serving 367kcal 6.7Protein 30Fat 56.7Carbs Casper's Ice Cream, Inc. Hand-Dipped Ice Cream Bars, Sea Salt Caramel Ice Cream & Frozen Yogurt High in saturated fat — 70% DV per serving 338kcal 3.9Protein 23.4Fat 29.9Carbs Now Health Group Inc. Certified Organic Fiber-3 Golden Flax Meal, Acacia & Inulin (Fos) Powder Other Grains & Seeds 471kcal 17.6Protein 23.5Fat 47.1Carbs Now Health Group Inc. Tropical Punch Slender Sticks Sugar-Free Drink Sticks, Tropical Punch Powdered Drinks 200kcal 0Protein 0Fat 80Carbs Wal-Mart Stores, Inc. Pediatric Shakes, Chocolate, Chocolate Energy, Protein & Muscle Recovery Drinks High in added sugars — 26% DV per serving 100kcal 3.3Protein 3.8Fat 14.2Carbs Perrigo Company Vanilla Flavor Toddler Next Stage Milk Drink, Vanilla Milk Additives 457kcal 17.1Protein 17.1Fat 57.1Carbs Perrigo Company Vanilla Flavor Toddler Next Stage Milk Drink, Vanilla Powdered Drinks 457kcal 17.1Protein 17.1Fat 57.1Carbs Perrigo Company Milk Flavor Toddler Next Stage Milk Drink, Milk Milk Additives 457kcal 17.1Protein 17.1Fat 57.1Carbs PowerBear LLC Original Seasoned Pita Style Protein Chips, Original Seasoned Chips, Pretzels & Snacks 429kcal 28.6Protein 25Fat 32.1Carbs National Nutrition, Inc. Liquid Fiber For Kids, Orange, Orange Children's Natural Remedies 67kcal 0Protein 0Fat 46.7Carbs

Last updated: September 28, 2026

Note: This site presents label data from USDA FoodData Central for general information. It is not medical advice. Check the package label; formulations change.