Arabinogalactan is a polysaccharide commonly found in the cell walls of many different types of plants, but is particularly abundant in the western larch. Arabinogalactan is FDA approved to be used in the food industry as a stabilizer and sweetener as well as for use as a fiber supplement. It is also marketed as a dietary supplement proposed to be beneficial for digestive health, boost the immune system and assist in the treatment and prevention of liver cancer.
Gastroinestinal Effects
Use of arabinogalactan can cause flatulence, bloating, and a change in bowel habits. These changes are likely a result of its function as a source of dietary fiber, according to a 2000 monograph in the "Alternative Medicine Review."
Galactose Intolerance
Arabinogalactan contains galactose. Therefore, individuals with galactosemia, an inherited inability to break down the sugar galactose should avoid using arabinogalactan supplements.
Immune System Interactions
Some research seems to indicate that arabinogalactan stimulate some components of the immune system. Until the degree and nature of arabinogalactan's interaction with the immune system is better understood, individuals with autoimmune disorders should approach the use of this supplement with caution, as it may cause a worsening of symptoms. Likewise, individuals who have received a transplanted organ should also be cautious with supplements containing arabinogalactan as it could potentially decrease the effectiveness of the necessary immunosuppressive drugs.
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