Galactooligosaccharides (GOS) : Irritable Bowel Syndrome (IBS)
B エビデンス 少なくとも1件のランダム化試験がこれを支持しており、おおむね一貫した結果が得られています。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).
結論
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
対象集団: review of prebiotics, probiotics, synbiotics, postbiotics for gastrointestinal inflammation
対象集団: IBS patients (Rome IV) who improved on FODMAP diet
対象集団: IBS-D patients (Rome IV)
対象集団: Adult IBS patients
対象集団: Adults with constipation-predominant IBS
対象集団: Laboratory food science study (no human subjects)
Key Statistics
3
研究数
400
参加者数
Positive
グレード
Referenced Papers
Dosage & Usage
mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units
一般的な使用量
- 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)
上限量: Well-tolerated up to 15 g/day; optimal dose appears to be 3.5-5 g/day
研究で検討された用量
| 用量 | 期間 | 効果 | 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 | -- |
推奨摂取タイミング: With meals; start with lower dose and increase gradually
Safety & Side Effects
報告されている副作用
- ⚠ 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
既知の相互作用
- ● 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)
耐容上限摂取量: Well-tolerated up to 15 g/day; optimal dose appears to be 3.5-5 g/day
サプリメントの摂取を開始する前に、必ず医療専門家にご相談ください。
Frequently Asked Questions
Does Galactooligosaccharides (GOS) help with Irritable Bowel Syndrome (IBS)?
How much Galactooligosaccharides (GOS) should I take for Irritable Bowel Syndrome (IBS)?
Are there side effects of Galactooligosaccharides (GOS)?
How strong is the evidence for Galactooligosaccharides (GOS) and Irritable Bowel Syndrome (IBS)?
Related Evidence
に関する他の成分: Irritable Bowel Syndrome (IBS)
References
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