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Source Naturals, FOS, (Fructooligosaccharides), 100 Tablets

Source Naturals, FOS, (Fructooligosaccharides), 100 Tablets

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Out of Stock — Estimated availability 06/12/2017
  • Expiration Date: Nov 2020
  • Shipping Weight:
    0.41 lbs
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  • Product Code: SNS-00575
  • UPC Code: 021078005759
  • Package Quantity: 100 Tablets
  • Dimensions:
    4.4 x 2.4 x 2.4 in, 0.35 lbs
    Switch to Metric units
Product Overview


  • Dietary Supplement
  • Probiotic Enhancer
  • 1,000 mg

Source Naturals FOS is a complex of fructooligosaccharides (FOS) - a group of naturally occurring carbohydrates which can help promote the growth of beneficial flora in the gastrointestinal tract. The body normally maintains a balance of "friendly" flora in the intestines; unfortunately factors such as improper diet, stress, gastrointestinal problems, and use of antibiotics may disrupt this delicate balance. FOS are long chain sugars which are indigestible by humans, but serve as the "food" for friendly flora, helping increase their numbers in the body. Scientific research conducted in Japan has shown that FOS are selectively used by friendly flora such as bifidobacteria and lactobacilli.

Suggested Use

3 to 4 tablets daily.

Other Ingredients

Stearic acid, modified cellulose gum, colloidal silicon dioxide, and magnesium stearate.

Each Tablet contains 1000 mg of fructooligosaccharides (FOS)

Suitable for vegetarians and Hypoallergenic: Contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, preservatives, or artificial color, flavor, or fragrance.


Store in a cool, dry place.

Note: If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.

Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.

Supplement Facts
Serving Size: 4 Tablets
Servings Per Container: 25
  Amount Per Serving %DV
Calories 10  
Total Carbohydrate 4 g 1%*
Dietary Fiber 4 g 16%*
Iron (naturally occurring) 450 mcg 3%
Sodium 25 mg 1%
Fructooligosaccharides (FOS) 4 g
*Percent Daily Values (%DV) based on a 2,000 calorie diet.
†Daily Value not established.
iHerb Customer Reviews

Convenient source of soluble fibre

Posted by Reviewer1325246 on Feb 09, 2017 | Verified Purchase

Very convenient to take, and seems to be working to improve constipation with no unpleasant cramps. The tablets are a bit large and long, but breaking them in two is easy and solves that problem.

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Tried it first time, liked it !!

Posted by 4793703639160761375 on Mar 12, 2015 | Verified Purchase

I like this lot better than taking any probiotics. Probiotics add other bacteria in the system. FOS provide support for the bacteria that are already in the system.

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Source Naturals FOS

Posted by Reviewer1051581 on Nov 02, 2012 | Verified Purchase

this is a special product i purchased for my daughters. Although the pill itself is too large for one daughter, the other is okay with the size. This is a great product and helps the digestive system in addition to the acidophilus.

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Posted by Reviewer3018037 on Jan 02, 2012 | Verified Purchase

Effective only for the first time Large pill size

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Source Naturals FOS

Posted by Reviewer2563166 on Aug 30, 2009 | Verified Purchase

Great Product! Super easy to swallow (unlike other FOS-type products). Item arrived fast too!

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