Source Naturals FOS, 100 Tablets (1,000 mg per Tablet)
100 tablets · Tablets
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Price history
Best price so far: £14.14 at Iherb on 2 Sept 2026
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About this product
Dietary Supplement(Fructooligosaccharides)Probiotic Enhancer1,000 mgSuitable for Vegetarians. 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.