Fructo-Oligosaccharides
Evidence status
Limited evidence to recommend for any consumer outcome yet.
2 papers · 1 claim · 6 outcomes scored
Outcomes
What fructo-oligosaccharides actually does, by outcome
Each row is one outcome with effect size, evidence base, the dose that worked in trials, and time to first effect. Magnitude tiers come from native-unit MCID where available, Cohen's d otherwise.
Outcome Effect size Evidence Dose Weeks Rank
Grow beneficial gut bacteria Not enough research
The species that produce vitamins and crowd out harmful bugs gain ground.
1 RCT n=— 16 g 2 wk
1 RCT
n=—
16 g
2 wk
—
| Outcome | Effect | Evidence | Dose | Weeks | Rank |
|---|---|---|---|---|---|
| Grow beneficial gut bacteria Not enough research | | 1 RCT n=— | 16 g | 2 wk | — |
Sources
- 1. Fructooligosaccharide (FOS) and Galactooligosaccharide (GOS) Increase Bifidobacterium but Reduce Butyrate Producing Bacteria with Adverse Glycemic Metabolism in healthy young population. (2017) ↑
- 2. Differential effects of inulin and fructooligosaccharides on gut microbiota composition and glycemic metabolism in overweight/obese and healthy individuals: a randomized, double-blind clinical trial. (2025) ↑
Generated August 14, 2026
Related
More evidence for Fructo-Oligosaccharides
Ingredient evidence
Ingredient evidence
NewBifidobacterium (unspecified)
All scored outcomes
Aug 14, 2026
Ingredient evidence
Ingredient evidence
NewBifidobacterium adolescentis
All scored outcomes
Aug 14, 2026
Ingredient evidence
Ingredient evidence
NewLactobacillus
All scored outcomes
Aug 14, 2026
Ingredient evidence
Ingredient evidence
NewOligosaccharide (unspecified)
All scored outcomes
Aug 14, 2026