Fructooligosaccharides (FOS) для Irritable Bowel Syndrome (IBS)

Q: Does Fructooligosaccharides (FOS) help with Irritable Bowel Syndrome (IBS)?

Based on 2 studies with 150 participants, there is preliminary evidence that needs more research that Fructooligosaccharides (FOS) may support Irritable Bowel Syndrome (IBS) management. Our evidence grade is D (Very Early Research).

Q: How much Fructooligosaccharides (FOS) should I take for Irritable Bowel Syndrome (IBS)?

Studies have used various dosages. A commonly studied range is 2-10 g/day. Always consult your healthcare provider before starting any supplement regimen.

Q: Are there side effects of Fructooligosaccharides (FOS)?

Reported side effects may include Gas, bloating, and flatulence (dose-dependent; more common above 10 g/day), Abdominal cramping at higher doses, May worsen IBS symptoms in FODMAP-sensitive individuals, Loose stools at excessive doses. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.

Q: How strong is the evidence for Fructooligosaccharides (FOS) and Irritable Bowel Syndrome (IBS)?

We rate the evidence as Grade D (Very Early Research). This rating is based on 2 peer-reviewed studies with 150 total participants. The overall direction of effect is mixed.

Mixed results. Low doses may help (5 g) but higher doses can worsen bloating due to rapid fermentation.

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Итог

Mixed results. Low doses may help (5 g) but higher doses can worsen bloating due to rapid fermentation.

Key Study Findings

Other

FODMAP Profile of Wholegrain Pasta.

Dose: None или: None Outcome: FODMAP compound content in pasta (analytical) Эффект: None None

Популяция: Commercially available pasta products (analytical study)

Randomized Controlled Trial n=9 12 weeks

Modification of the Low FODMAP Diet Is Feasible in the Treatment of Irritable Bowel Syndrome: …

Dose: None или: Baseline; crossover between 3 diets Outcome: Birmingham IBS questionnaire symptom score Эффект: 75% relief on low FOS+GOS; 62.5% on FODMAP p<0.05

Популяция: IBS patients (Rome IV criteria)

Other

Biotechnological Tools for the Production of Low-FODMAP Wholegrain Wheat and Rye Cookies and Crackers.

Dose: None или: Standard wholegrain flour products Outcome: FODMAP content reduction in cookies and crackers Эффект: Up to 99.5% FODMAP reduction (wheat malt) None

Популяция: Laboratory food science study (no human subjects)

Randomized Controlled Trial 12 weeks Double-blind

Efficacy and Safety of a Mixture of Microencapsulated Sodium Butyrate, Probiotics, and Short Chain Fructooligosaccharides …

Dose: None или: Placebo Outcome: Quality of life Эффект: None p = 0.023

Популяция: IBS patients

In Vitro

Microbial inulinase promotes fructan hydrolysis under simulated gastric conditions.

Dose: None или: None Outcome: None Эффект: None None

Популяция: None

Controlled Clinical Trial n=54 3.0 weeks

[Clinical efficacy of a modern probiotic for the correction of intestinal microflora in patients with …

Dose: 350 mg или: None Outcome: IBS symptom improvement Эффект: None None

Популяция: Irritable bowel syndrome with diarrhea and antibiotic-associated diarr

Key Statistics

Исследования

150

Участники

↔

Mixed

Оценка

Referenced Papers

FODMAP Profile of Wholegrain Pasta. Other

Foods (Basel, Switzerland) 2025 3 цитирований

Biotechnological Tools for the Production of Low-FODMAP Wholegrain Wheat and Rye Cookies and Crackers. Other

Foods (Basel, Switzerland) 2025 1 цитирований

Modification of the Low FODMAP Diet Is Feasible in the Treatment of Irritable Bowel Syndrome: A Randomised Crossover Study. Other

Gastroenterology research and … 2025

Efficacy and Safety of a Mixture of Microencapsulated Sodium Butyrate, Probiotics, and Short Chain Fructooligosaccharides in Patients with Irritable Bowel … Other

Journal of clinical … 2024 4 цитирований

Microbial inulinase promotes fructan hydrolysis under simulated gastric conditions. Other

Frontiers in nutrition 2023 8 цитирований

[Clinical efficacy of a modern probiotic for the correction of intestinal microflora in patients with irritable bowel syndrome with diarrhea … Other

Voprosy pitaniia 2023

Inulin as a functional ingredient and their applications in meat products. Review

Carbohydrate polymers 2022 77 цитирований

Increased fermentable carbohydrate intake alters colonic mucus barrier function through glycation processes and increased mast cell counts. Other

FASEB journal : … 2022 16 цитирований

Effects of Microencapsulated Sodium Butyrate, Probiotics and Short Chain Fructooligosaccharides in Patients with Irritable Bowel Syndrome: A Study Protocol of … Other

Journal of clinical … 2022 12 цитирований

A Randomized, Double-Blind, Placebo-Controlled Trial to Evaluate the Effects of Multi-Strain Synbiotic in Patients with Functional Diarrhea and High Fecal … RCT

Nutrients 2022 8 цитирований

Current evidence on the therapeutic use of fiber in irritable bowel syndrome. Other

Expert review of … 2022 8 цитирований

Nutritional and anti-nutritional properties of lentil (Lens culinaris) protein isolates prepared by pilot-scale processing. Other

Food chemistry: X 2021 64 цитирований

FODMAP Fingerprinting of Bakery Products and Sourdoughs: Quantitative Assessment and Content Reduction through Fermentation. Other

Foods (Basel, Switzerland) 2021 10 цитирований

The Effectiveness of Synbiotic Preparation Containing Lactobacillus and Bifidobacterium Probiotic Strains and Short Chain Fructooligosaccharides in Patients with Diarrhea Predominant … RCT

Nutrients 2020 78 цитирований

Impact of Cultivation Method and Cultivar Selection on Soluble Carbohydrates and Pungent Principles in Onions ( Allium cepa L.). Other

Journal of agricultural … 2018 13 цитирований

Effects of scFOS on the composition of fecal microbiota and anxiety in patients with irritable bowel syndrome: a randomized, double … RCT

Neurogastroenterology and motility 2017 131 цитирований

Gastrointestinal tolerance of low FODMAP oral nutrition supplements in healthy human subjects: a randomized controlled trial. RCT

Nutrition journal 2017 10 цитирований

[Contemporary dietotherapy of the irritable bowel syndrome]. Review

Voprosy pitaniia 2013

Efficacy, safety, and tolerability of fructooligosaccharides in the treatment of irritable bowel syndrome. RCT

The American journal … 2000 136 цитирований

Dosage & Usage

mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units

Часто используемые дозировки

general:: 2-10 g/day
prebioticeffect:: 5-8 g/day for bifidogenic effect
constipationsupport:: 5-10 g/day

Верхний предел: Well-tolerated up to 20 g/day; start low to avoid excess gas

Дозировки, изученные в исследованиях

Дозировка	Длительность	Эффект	N
None	--	Neutral	--
None	12 weeks	Positive	9
None	--	Positive	--
None	12 weeks	Positive	--
None	--	Mixed	--
350 mg	3.0 weeks	Positive	54
None	--	Mixed	--
None	--	Negative	--

Лучшее время приёма: With meals; divide doses throughout the day

Safety & Side Effects

Зарегистрированные побочные эффекты

⚠ Gas, bloating, and flatulence (dose-dependent; more common above 10 g/day)
⚠ Abdominal cramping at higher doses
⚠ May worsen IBS symptoms in FODMAP-sensitive individuals
⚠ Loose stools at excessive doses

Известные взаимодействия

● Other FODMAPs (cumulative fermentation effect in sensitive individuals)
● Blood sugar-lowering medications (FOS may modestly affect glycemic response)
● Calcium supplements (FOS may enhance calcium absorption)

Допустимый верхний уровень потребления: Well-tolerated up to 20 g/day; start low to avoid excess gas

Всегда консультируйтесь с врачом перед началом приёма любых добавок.Всегда консультируйтесь с лечащим врачом перед началом приёма любой добавки.

Frequently Asked Questions

Does Fructooligosaccharides (FOS) help with Irritable Bowel Syndrome (IBS)?

Based on 2 studies with 150 participants, there is preliminary evidence that needs more research that Fructooligosaccharides (FOS) may support Irritable Bowel Syndrome (IBS) management. Our evidence grade is D (Very Early Research).

How much Fructooligosaccharides (FOS) should I take for Irritable Bowel Syndrome (IBS)?

Studies have used various dosages. A commonly studied range is 2-10 g/day. Always consult your healthcare provider before starting any supplement regimen.

Are there side effects of Fructooligosaccharides (FOS)?

Reported side effects may include Gas, bloating, and flatulence (dose-dependent; more common above 10 g/day), Abdominal cramping at higher doses, May worsen IBS symptoms in FODMAP-sensitive individuals, Loose stools at excessive doses. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.

How strong is the evidence for Fructooligosaccharides (FOS) and Irritable Bowel Syndrome (IBS)?

We rate the evidence as Grade D (Very Early Research). This rating is based on 2 peer-reviewed studies with 150 total participants. The overall direction of effect is mixed.

Related Evidence

Другие ингредиенты для Irritable Bowel Syndrome (IBS)

Peppermint Oil A Lactobacillus rhamnosus GG B Psyllium Husk B Lactobacillus plantarum B Partially Hydrolyzed Guar Gum (PHGG) B Bifidobacterium longum B

Fructooligosaccharides (FOS) для других состояний

Chronic Constipation C

Краткий вывод

Mixed results. Low doses may help (5 g) but higher doses can worsen bloating due to rapid fermentation.

Evidence Strength30%

Low confidence

Разбор исследований

RCT (5)Meta (0)Other (0)

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