Arabinogalactan

Fiber

Also known as: Larch Arabinogalactan, Arabinogalactan (from Larch), AG, LAG

Grade B

💊 1.5-4.5g per day🎯 4 primary uses🔗 3 synergies✅ Generally safe

Overview

A prebiotic soluble fiber derived from larch tree bark that supports immune function and gut health by promoting beneficial bacteria growth.

Primary Uses

Immune supportGut healthPrebiotic fiberDigestive support

Frequently Asked About Arabinogalactan

How much Arabinogalactan should I take?

The typical effective range is 1.5-4.5g per day. Individual needs vary based on age, body weight, diet, and goals — start at the lower end and adjust based on response. Always consult a healthcare provider before starting a new supplement.

When is the best time to take Arabinogalactan?

Can be taken any time. Consistency matters more than perfect timing — pick a daily anchor (e.g. with breakfast or before bed) and stick with it.

Should I take Arabinogalactan with food?

Can be taken with or without food.

What does Arabinogalactan pair well with?

Arabinogalactan stacks well with Probiotics, Other prebiotic fibers, and Vitamin C — these combinations either improve absorption or work synergistically toward common goals.

What are the side effects of Arabinogalactan?

Most people tolerate Arabinogalactan well. The most commonly reported side effects are Initial bloating and Gas (temporary). Side effects are usually dose-dependent — lowering the dose often resolves them.

Dosage

Typical range

1.5-4.5g per day

Timing

Can be taken any time

With food

Can be taken with or without food

Duration

Safe for long-term use

Special Populations

Generally safe; start with lower doses if sensitive digestion

Research & Studies

Search the literature now

We haven’t curated landmark studies for Arabinogalactanyet — one-click into the primary literature here. PubMed (RCTs) is usually the highest-signal starting point.

Search Arabinogalactan research

PubMed (RCTs) ↗Randomized trials PubMed (all) ↗Full literature Cochrane Reviews ↗Systematic reviews Examine.com ↗Research summaries

Browse all curated studies →

Mechanism of Action

• Fermented by gut bacteria to produce short-chain fatty acids (SCFAs)
• Promotes growth of beneficial Bifidobacteria and Lactobacilli
• May enhance natural killer (NK) cell activity
• Supports gut barrier integrity

Evidence Quality

Evidence Grade B

Good evidence for prebiotic effects and immune modulation; more research needed for clinical outcomes.

Safety & Contraindications

Common Side Effects

• Initial bloating
• Gas (temporary)

Pregnancy & Breastfeeding

Consult healthcare provider

Liver & Kidney Notes

No known concerns

Interactions

🧪 Supplements

• Works synergistically with other prebiotics

Stacking & Synergies

Pairs Well With

Probiotics ↗Other prebiotic fibersVitamin C ↗

Best Goal Synergies

Gut healthImmune support

Buying Guide

What to Look For

• Specify larch source
• Third-party tested

Standardization Markers

From Larix species

Adulteration risk

Low

Practical Notes

• Start with 1g and increase gradually
• Mix into water or smoothies

Top Products with Arabinogalactan

Highest-scored catalog products containing Arabinogalactan, ranked by our scoring engine.

Browse all Arabinogalactan products →

More in Fiber

Other ingredients in the Fiber category.

Acacia Fiber

Gentle prebiotic fiber from acacia gum. Very well-tolerated with slow fermentation and minimal gas.

Apple Pectin

Soluble fiber from apples that supports gut health, cholesterol, and gentle regularity.

Beta-Glucan Fiber

Soluble fiber from oats or mushrooms with immune-modulating and cholesterol-lowering effects.

Flaxseed

Flaxseed oil is a plant-based source of alpha-linolenic acid (ALA), an omega-3 fatty acid with modest evidence for cardiovascular and inflammatory support. Human studies show moderate benefits for cholesterol and blood pressure, though conversion to EPA/DHA is limited.

FOS (Fructooligosaccharides)

Short-chain prebiotic fiber that rapidly feeds bifidobacteria. More gas-producing than longer-chain fibers.

Glucomannan (Konjac)

Highly viscous fiber from konjac root. Strong satiety effects and blood sugar support.

Browse all Fiber ingredients →

Last reviewed: June 2026 by the Formulate Research Team. Sources cited above; methodology and scoring criteria published here.

Cite this page

Formulate Research Team. (2026, June). Arabinogalactan — Evidence-Based Supplement Guide. Formulate Supplement Encyclopedia. https://app.formulate-health.app/learning/supplements/arabinogalactan

Educational content based on published research and our scoring methodology. Not medical advice — consult a qualified healthcare provider before starting, stopping, or changing supplements, especially if you take medications, are pregnant, or have a medical condition.