Ingredient

Fructooligosaccharides

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Source

Not animal-derived

Allergen

Role in food

FOS are used as a low-calorie sweetener and a prebiotic fiber. They add sweetness …

What it is

Fructooligosaccharides (FOS) are short chains of sugar molecules. They are naturally found in many fruits and vegetables, such as bananas, onions, and garlic. FOS are typically produced commercially by using enzymes to convert sugars from sources like sucrose or corn starch.

Why it's used

FOS are used as a low-calorie sweetener and a prebiotic fiber. They add sweetness to foods and drinks without contributing many calories. They are often found in snack bars, beverages, yogurt, and baked goods.

Health notes

FOS are generally recognized as safe (GRAS) by the FDA for use in foods. They are considered a prebiotic fiber, meaning they can promote the growth of beneficial bacteria in the gut. Some studies suggest FOS may help improve mineral absorption and support digestive health. JECFA has evaluated FOS and established specifications for their use. Evidence regarding specific health benefits is ongoing.

Allergen info

Fructooligosaccharides are not derived from any of the nine FDA major allergens. They do not contain gluten.

Products containing Fructooligosaccharides

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NUGO Protein Bar Snack, Energy & Granola Bars 388kcal 31.2Protein 15Fat 45Carbs EAS Get Lean & Toned Bars Snack, Energy & Granola Bars High in saturated fat — 20% DV per serving 420kcal 30Protein 14Fat 46Carbs NUTRAFLORA FOS* High-Protein Nutrition With Fiber Energy, Protein & Muscle Recovery Drinks 0kcal 5.5Protein 3.9Fat 16.8Carbs

LIDL Dark Chocolate Flavored Coating & Peanut Butter Chewy Protein Granola Bars, Dark Chocolate Coating & Peanut Butter Snack, Energy & Granola Bars 425kcal 25Protein 22.5Fat 42.5Carbs

LIDL Oats & Peanut Butter Flavor Chewy Fiber Bars, Oats & Peanut Butter Snack, Energy & Granola Bars 375kcal 7.5Protein 12.5Fat 70Carbs

NOT A BRANDED ITEM Peanuts, Dark Chocolate Flavored Coating & Almonds Chewy Protein Granola Bars, Peanuts, Dark Chocolate Flavored Coating & Almonds Snack, Energy & Granola Bars High in saturated fat — 20% DV per serving 500kcal 27.5Protein 27.5Fat 37.5Carbs Pepsico Inc. Naked Probiotic Machine Tropical Mango Juice Smoothie 15.2 Fluid Ounce Plastic Bottle Non Alcoholic Beverages Ready to Drink 55kcal 0.4Protein 0Fat 14.1Carbs Eicotech Corporation Fudge Graham Nutrition Bars, Fudge Graham Snack, Energy & Granola Bars High in saturated fat — 20% DV per serving 420kcal 28Protein 14Fat 46Carbs Abbott Laboratories Inc Nutrition Bars, Yellow Cupcake Snack, Energy & Granola Bars High in added sugars — 22% DV per serving 429kcal 14.3Protein 17.1Fat 57.1Carbs

Abbott Laboratories Inc Nutrition Bar, Fudge Graham Snack, Energy & Granola Bars High in saturated fat — 20% DV per serving 420kcal 28Protein 14Fat 46Carbs Abbott Laboratories Inc Yellow Cupcake Nutrition Bars, Yellow Cupcake Snack, Energy & Granola Bars 429kcal 14.3Protein 17.1Fat 57.1Carbs

Abbott Laboratories Inc Vanilla Original Nutrition Shake With Fiber, Vanilla Energy, Protein & Muscle Recovery Drinks High in sodium — 261% DV per serving High in saturated fat — 150% DV per serving High in cholesterol — 50% DV per serving 3125kcal 112Protein 75Fat —Carbs

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.