Usually present in plant cell walls as glycoproteins. It may be found in many popular vegetables and therapeutic herbs. North American larch trees are the main commercial sources of this long, highly branching, high-molecular-weight polysaccharide.
References
Dion, C., Chappuis, E., & Ripoll, C. (2016). Does Larch Arabinogalactan enhance immune function? A review of mechanistic and clinical trials. Nutrition & Metabolism, 13(1). Click here to redirect detail information.