Arabinogalactan

Arabinogalactan

About Arabinogalactan

Prebiotic fiber for GI and immune support derived from the larch tree*
Arabinogalactan is a starch-like fiber found in many plants, and is in highest concentrations in larch trees. Larch arabinogalactans possess important immune-enhancing properties and are an excellent source of prebiotic fiber.*

The Thorne Difference

ResistAid® is a patented larch arabinogalactan that is used in Thorne products. It is produced by steam-heating larch wood chips to extract the phenolic and arabinogalactan compounds and then drying the resulting extract. This patented extraction method is unique because it requires no harsh chemicals to release the compounds from the wood matrix, and it means the product remains pure and is structurally unaltered post-extraction.

Products with Arabinogalactan

Ashwagandha

FiberMend®

Cognition & Focus, Energy, Mood
$68
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Gut Health, Liver & Detox

$45

The Science

Safety
Tolerability of a proprietary larch arabinogalactan extract: a randomized, double-blind, placebo-controlled clinical trial in healthy subjects. . Food and Nutrition Sciences 2012;3:1533-1538. [study used ResistAid®]. Grube B, Stier H, Riede L, Gruenwald J.
Larch arabinogalactan monograph. . Alternative Medicine Review 2000;5:463-466..
Immune Support
Immunomodulatory effects of ResistAid®: A randomized, double-blind, placebo-controlled, multi-dose study. . Journal of the American College of Nutrition 2013;32(5):331-338.. Udani J.
Larch arabinogalactan effects on reducing incidence of… .. Current Medical Research and Opinion 2013;29:251-258. [study used ResistAid®]. Riede L, Grube B, Gruenwald J.
Immunological activity of larch arabinogalactan and Echinacea: a preliminary, randomized, double-blind, placebo-controlled trial. . Alternative Medicine Review 2002;7(2):138-149.. Kim L, Waters R, Burkholder P.
Proprietary arabinogalactan extract increases antibody response to the pneumonia vaccine: a randomized, double-blind, placebo-controlled, pilot study in healthy volunteers. . Nutrition Journal 2010;9:32. [study used ResistAid®]. Udani J, Singh B, Barrett M, Singh V.
Gut Health
Effects of dietary arabinogalactan on gastrointestinal and blood parameters in healthy human subjects. . Journal of the American College of Nutrition 2001;20(4):279-285.. Robinson R, Feirtag J, Slavin J.

The Science

Immune Support
Immunomodulatory effects of ResistAid®: A randomized, double-blind, placebo-controlled, multi-dose study. . Journal of the American College of Nutrition 2013;32(5):331-338.. Udani J.
Larch arabinogalactan effects on reducing incidence of… .. Current Medical Research and Opinion 2013;29:251-258. [study used ResistAid®]. Riede L, Grube B, Gruenwald J.
Immunological activity of larch arabinogalactan and Echinacea: a preliminary, randomized, double-blind, placebo-controlled trial. . Alternative Medicine Review 2002;7(2):138-149.. Kim L, Waters R, Burkholder P.
Proprietary arabinogalactan extract increases antibody response to the pneumonia vaccine: a randomized, double-blind, placebo-controlled, pilot study in healthy volunteers. . Nutrition Journal 2010;9:32. [study used ResistAid®]. Udani J, Singh B, Barrett M, Singh V.
Gut Health
Effects of dietary arabinogalactan on gastrointestinal and blood parameters in healthy human subjects. . Journal of the American College of Nutrition 2001;20(4):279-285.. Robinson R, Feirtag J, Slavin J.
Safety
Larch arabinogalactan monograph. . Alternative Medicine Review 2000;5:463-466..
Tolerability of a proprietary larch arabinogalactan extract: a randomized, double-blind, placebo-controlled clinical trial in healthy subjects. . Food and Nutrition Sciences 2012;3:1533-1538. [study used ResistAid®]. Grube B, Stier H, Riede L, Gruenwald J.

Our Ingredients

Thorne cares deeply about where our ingredients come from. Our research and development team is tasked with sourcing exceptional ingredients, maintaining oversight of an ingredient's origin, and providing complete supply chain transparency.
We partner only with suppliers whose practices emphasize quality, science, and environmental responsibility. We believe that better ingredients mean better potency, absorption, and digestibility - and ultimately better health.

Related Health Concerns

Immune Health
Gut Health