Compound or practice · Nutrition
Larch Arabinogalactan
A larch-tree prebiotic fiber with modest immune and gut signals — well tolerated, lightly evidenced.
- Overall grade
- Grade C
- Last revised
- 2
- graded outcomes
- 0
- references listed
A structured monograph in Prometheus's bundled library. Its grades are the monograph's own reading of the evidence, not a peer-reviewed review.
2 at grade C — 2 graded rows
What is known
Each outcome with its grade (how strong the evidence is, A to D), the size of the effect where the entry records one, and how often studies agree.
- Gut microbiome / SCFAEvidence grade C
Prebiotic
Smallmixed
- Cold incidenceEvidence grade C
Preliminary
Smalllow
What is uncertain
Read off the same rows as above. Nothing here is added that the entry does not itself record.
- Thin evidence: Gut microbiome / SCFA (grade C); Cold incidence (grade C).
The evidence in words
What it is
Arabinogalactan from larch (Larix) is a soluble prebiotic fiber used for immune and gut support.
How it works
It ferments to short-chain fatty acids, shifts the microbiome toward beneficial species, and may prime innate immunity.
What the evidence shows
Small trials suggest larch arabinogalactan increases beneficial gut bacteria and short-chain fatty acids and may modestly reduce the incidence of common colds. Immune effects are preliminary; it's a gentle, well-tolerated fiber.
Safety & interactions
Very well tolerated with minimal gas versus many fibers.
Bottom line
A gentle prebiotic fiber with early immune/gut signals — a reasonable, low-side-effect fiber, though evidence is modest.
Related reading
Entries that share this one's tags or conditions.
- Larch Arabinogalactan for Cold incidenceEvidence grade C — PreliminaryEvidence grade C
- Larch Arabinogalactan for Gut microbiome / SCFAEvidence grade C — PrebioticEvidence grade C
- Larch Arabinogalactan: side effects, safety & interactionsVery well tolerated with minimal gas versus many fibers.Evidence grade C
- Resistant StarchStarch that escapes digestion to feed the colon — a potent butyrate producer with real post-meal glucose benefits.Evidence grade B
Sources
This entry lists no references of its own.
Last revised . A grade is this entry's reading of the evidence, not medical advice.