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Galactooligosaccharides (GOS) para Irritable Bowel Syndrome (IBS)

B

Reduces IBS symptoms (pain, bloating, flatulence) in dose-dependent manner. 3.5 g/day showed better results than 7 g/day (excess fermentation at higher dose).

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B

Conclusión

Reduces IBS symptoms (pain, bloating, flatulence) in dose-dependent manner. 3.5 g/day showed better results than 7 g/day (excess fermentation at higher dose).

Key Study Findings

Review
Interplay of probiotics, prebiotics, synbiotics and postbiotics: a review of their therapeutic potential for gastrointestinal …
Dose: None vs: None Outcome: None Efecto: None None

Población: review of prebiotics, probiotics, synbiotics, postbiotics for gastrointestinal inflammation

Randomized Controlled Trial n=45 12 weeks Double-blind
All FODMAPs Aren't Created Equal: Results of a Randomized Reintroduction Trial in Patients With Irritable …
Dose: None vs: Sequential FODMAP subgroup reintroduction Outcome: Abdominal pain and bloating severity Efecto: None p=0.007 fructans; p=0.04 GOS

Población: IBS patients (Rome IV) who improved on FODMAP diet

Randomized Controlled Trial 4 weeks Double-blind
Is a Simplified, Less Restrictive Low FODMAP Diet Possible? Results From a Double-Blind, Pilot Randomized …
Dose: None vs: Traditional low FODMAP diet Outcome: IBS symptom response Efecto: None None

Población: IBS-D patients (Rome IV)

Systematic Review
Nutritional Interventions in Adult Patients With Irritable Bowel Syndrome: An Umbrella Review of Systematic Reviews …
Dose: None vs: Various Outcome: IBS symptom improvement Efecto: Probiotics abdominal pain RR 4.04 (2.36-6.92) None

Población: Adult IBS patients

Randomized Controlled Trial n=34 8 weeks Single-blind
A randomized trial of inulin for bowel symptoms, depression and quality of life in constipation …
Dose: 9.2 g/day total (4.6 g twice daily) vs: Maltodextrin 9.2 g/day placebo Outcome: IBS-SSS score and IBS-QoL score Efecto: IBS-SSS: 267.3→195.8; IBS-QoL: 61.0→77.4 0.026 (IBS-SSS); 0.006 (QoL)

Población: Adults with constipation-predominant IBS

Other
Biotechnological Tools for the Production of Low-FODMAP Wholegrain Wheat and Rye Cookies and Crackers.
Dose: None vs: Standard wholegrain flour products Outcome: FODMAP content reduction in cookies and crackers Efecto: Up to 99.5% FODMAP reduction (wheat malt) None

Población: Laboratory food science study (no human subjects)

Key Statistics

3

Estudios

400

Participantes

Positive

B

Calificación

Referenced Papers

Foods (Basel, Switzerland) 2025 3 citas
Archivos argentinos de … 2024 3 citas
Frontline gastroenterology 2021 56 citas
Critical reviews in … 2019 35 citas
The American journal … 2019 15 citas
International journal of … 2017 146 citas
Journal of gastroenterology … 2017 32 citas
Current opinion in … 2017 24 citas
World journal of … 2016 238 citas
Scandinavian journal of … 2016 17 citas
Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz 2016 2 citas
Journal of neurogastroenterology … 2015 60 citas
Menopause international 2009 29 citas
Alimentary pharmacology & … 2006 629 citas

Dosage & Usage

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

Dosificaciones de uso común

general:
2.5-5 g/day
ibssupport:
3.5 g/day (optimal dose; higher doses may increase symptoms)
infantgutsupport:
0.24-0.48 g/100 mL formula (added to infant formula)

Límite superior: Well-tolerated up to 15 g/day; optimal dose appears to be 3.5-5 g/day

Dosificaciones estudiadas en la investigación

Dosificación Duración Efecto N
None -- Positive --
None 12 weeks Negative 45
None 4 weeks Mixed --
None -- Positive --
9.2 g/day total (4.6 g twice daily) 8 weeks Positive 34
None -- Positive --
1e9 CFU/day + GOS 10 g/L -- Positive --
None -- Neutral --

Mejor momento para tomar: With meals; start with lower dose and increase gradually

Safety & Side Effects

Efectos secundarios reportados

  • Gas and bloating (especially above 5 g/day; dose-response is U-shaped)
  • Flatulence at higher doses
  • Abdominal cramping if dose increased too quickly
  • May worsen symptoms in FODMAP-sensitive individuals

Interacciones conocidas

  • Other FODMAPs (cumulative fermentation in sensitive individuals)
  • Lactose-containing products (GOS is derived from lactose; generally safe for lactose-intolerant individuals as GOS itself is lactose-free)

Ingesta máxima tolerable: Well-tolerated up to 15 g/day; optimal dose appears to be 3.5-5 g/day

Consulte siempre a su profesional de salud antes de comenzar cualquier suplemento.Siempre consulte a su profesional de salud antes de comenzar cualquier suplemento.

Frequently Asked Questions

Does Galactooligosaccharides (GOS) help with Irritable Bowel Syndrome (IBS)?
Based on 3 studies with 400 participants, there is moderate evidence from clinical studies that Galactooligosaccharides (GOS) may support Irritable Bowel Syndrome (IBS) management. Our evidence grade is B (Good Evidence).
How much Galactooligosaccharides (GOS) should I take for Irritable Bowel Syndrome (IBS)?
Studies have used various dosages. A commonly studied range is 2.5-5 g/day. Always consult your healthcare provider before starting any supplement regimen.
Are there side effects of Galactooligosaccharides (GOS)?
Reported side effects may include Gas and bloating (especially above 5 g/day; dose-response is U-shaped), Flatulence at higher doses, Abdominal cramping if dose increased too quickly, May worsen symptoms in FODMAP-sensitive individuals. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
How strong is the evidence for Galactooligosaccharides (GOS) and Irritable Bowel Syndrome (IBS)?
We rate the evidence as Grade B (Good Evidence). This rating is based on 3 peer-reviewed studies with 400 total participants. The overall direction of effect is positive.

Related Evidence

Aviso legal FDA: Estas declaraciones no han sido evaluadas por la Food and Drug Administration. Los productos y la información en este sitio web no están destinados a diagnosticar, tratar, curar ni prevenir ninguna enfermedad. Las calificaciones de evidencia presentadas se basan en nuestro análisis de investigación publicada revisada por pares y no constituyen consejo médico. Siempre consulte a su profesional de salud antes de comenzar cualquier régimen de suplementos.