Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Arabinogalactan, a polysaccharide derived primarily from the larch tree (Larix species), is used as a dietary supplement with claims of supporting immune function and reducing the incidence or severity of colds and other respiratory infections. Its use for this purpose is supported by some scientific research, though the evidence is not robust or conclusive.

Several small human clinical trials and animal studies suggest that arabinogalactan may have immunomodulatory effects. For example, studies have reported that supplementation can increase the activity of natural killer cells and enhance the production of certain cytokines, which are important for the immune response to viral infections. A few randomized controlled trials involving healthy adults indicate that arabinogalactan supplementation may reduce the incidence of common cold episodes or shorten their duration, although these studies are generally limited by small sample sizes and potential biases.

Despite these promising findings, authoritative health organizations do not currently endorse arabinogalactan as a proven antiviral or immune-boosting agent for the common cold. Most available studies are preliminary or have methodological limitations, such as lack of blinding or inadequate control groups. Therefore, while the use of arabinogalactan for colds is grounded in some scientific inquiry, the overall quality and quantity of evidence remain low, meriting a rating of 2 out of 5 for evidence strength.

In summary, arabinogalactan's use for colds is based on limited scientific evidence suggesting modest immune benefits, but more rigorous research is needed to confirm its efficacy.

More about arabinogalactan
More about Colds (antiviral)

Other ingredients used for Colds (antiviral)

Other health conditions supported by arabinogalactan

Products containing arabinogalactan

Douglas Laboratories A.H.C.C. ® Plus
Pure Encapsulations Arabinogalactan
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Pure Encapsulations EpiIntegrity
Thorne FiberMend
Designs For Health Immune Support Packets
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Designs For Health PaleoFiber® RS
Vitabase Vidophilus 35 Billion
Vitabase Women's Suprema Probiotic