Overview
Low-dose prebiotic from xylan.
- Endogenously produced or biosynthesized molecule
- Standardized pharmaceutical- or food-grade supplement
- Combined with cofactors that improve absorption or activity
- Capsule or softgel
- Powder
- Sublingual or buccal
- Liposomal liquid
Mechanism of action
Selectively bifidogenic at low doses.
- · Selectively bifidogenic at low doses
Effects on the body
Organ system effects
XOS (Xylooligosaccharides) influences gut motility, mucosal integrity, or microbial balance in the GI tract.
Evidence-based benefits
Improves bowel function
Moderate evidencePotential side effects
- · Mild bloating
Drug interactions
Supplement interactions
- Multi-strain probioticSupports microbiome diversity and barrier integrity.
- L-glutamineSubstrate for enterocyte energy and tight-junction maintenance.
No specific avoidances listed.
Dosing & bioavailability
Where to buy
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Third-party testedIndependently verified XOS (Xylooligosaccharides) — look for USP, NSF, or Informed Sport seals on the label for purity and dose accuracy.XOS (Xylooligosaccharides) third party tested NSF
CapsulesPre-measured XOS (Xylooligosaccharides) capsules — easiest for travel and consistent daily dosing without scoops or scales.XOS (Xylooligosaccharides) capsules
PowderBulk unflavored XOS (Xylooligosaccharides) powder — best cost-per-gram and flexible dosing for stacking or mixing into drinks.XOS (Xylooligosaccharides) powder unflavored
Best sellersMost-purchased XOS (Xylooligosaccharides) products on Amazon — a quick way to see what's reviewed widely before you commit.XOS (Xylooligosaccharides) best sellerScientific evidence8Show studiesHide studies
XOS prebiotic
Mäkeläinen H, et al.
13 adults
Increased bifidobacteria at 2 g.
PubMed: XOS (Xylooligosaccharides) — Improves bowel function
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Google Scholar: XOS (Xylooligosaccharides) — clinical evidence
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