Fructo-oligosaccharide (FOS) Powder



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Supplement Facts & Directions

Supplement Facts

 Serving Size: 1/2 Tablespoon (approx. 5 g)
Servings Per Container: Varies
Amount Per Serving % Daily Value*
Calories 10 *
Total Carbohydrates 5 g 2%*
       Dietary Fiber 5 g 20%*
FOS (Fructooligosaccharides) 5000 mg

* Percent Daily Values are based on a 2,000 calorie diet.
† Daily Value Not Established
‡ These supplement facts may vary from the product you receive. Please call for exact numbers.

Other Ingredients: None


Free of: Added Sugar, Soy, Dairy, Yeast, Gluten, Corn & Additives.

Directions: As a dietary supplement, begin with 1/2 teaspoon daily, added to juice or water. Gradually increase quantity to 1/2 Tablespoon daily or as directed by a physician.

Warning: Excessive consumption (>20g/day) may cause gastrointestinal disturbances such as diarrhea, flatulence, bloating, and stomach cramps. If you are pregnant, nursing, taking any medications, or have any medical conditions consult your physician before use. Keep out of reach of children.

Product Details

What Are Fructo-Oligosaccharides (FOS)?

Fructo-oligosaccharides (FOS), also known as fructooligosaccharides and oligofructose, are short chains of fructose molecules. They occur naturally in many plants, including blue agave succulents, asparagus, bananas, garlic, leeks, onions, and tomatoes. Fructo-oligosaccharides are low-calorie sugar alternatives with about 30 to 50 percent sweetness of sugar. They also alleviate the poor aftertaste of many other sugar substitutes.

Fructo-oligosaccharides are prebiotics and a source of dietary fiber. Their chemical configuration allows them to resist breaking down in the presence of enzymes in the saliva and digestive system. Instead, they bypass digestion and ferment into gas, lactate, and short-chain fatty acids in the colon. As a result, they have a lower calorie value and don’t affect blood sugar levels.

Potential Fructo-Oligosaccharides Benefits

Fructo-oligosaccharides have many potential benefits, including:

Fructo-Oligosaccharides Support Gut Health

Fructo-oligosaccharides are prebiotics that nourish healthy bacteria in the gut (probiotics). They also produce acids that can reduce harmful bacteria associated with food poisoning, such as Clostridia perfringens and E. coli. Fructo-oligosaccharides are also a good source of soluble fiber that can help relieve constipation. They also stimulate calcium absorption while suppressing the breakdown of bones for calcium.

May Support Weight Loss and Lower Cholesterol Levels

Using fructo-oligosaccharides as a sugar substitute may help individuals trying to lose weight. Using sugar substitutes reduces calories and doesn’t cause a glucose spike. Additionally, several studies show that fructo-oligosaccharides help lower total cholesterol and triglyceride levels by reducing fatty-acid synthesis.

What is the Best Sugar Substitute?

PureBulk carries numerous zero-calorie and low-calorie sugar alternatives. They have varied sweetness profiles, and choosing the best sugar substitute is often specific to the individual. In addition to fructo-oligosaccharides, PureBulk carries the following sugar alternatives:

Potential Fructo-Oligosaccharides Side Effects

Most people can use fructo-oligosaccharides as a sugar substitute or prebiotic without issue, as it is a dietary soluble fiber. However, as an oligosaccharide, it is a FODMAP food. Individuals eating a low-FODMAP diet, such as those with IBS or SIBO, may want to avoid fructo-oligosaccharides. Individuals with fructose intolerances or sensitivities should not consume fructo-oligosaccharides. People with these conditions may experience gastrointestinal side effects after consuming fructo-oligosaccharides, including bloating, cramps, and diarrhea. However, research shows that most individuals can consume as much as 20g of fructo-oligosaccharides per day without experiencing side effects.


Tested by Accredited 3rd Party Labs

PureBulk's supplements are tested by accredited third party labs in the USA to ensure their identity, purity and potency. To receive a copy of these test results or any other PureBulk supplement please fill out the COA request form found here.

*NOTE: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

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