The Cassia Gum has at least 75% polysaccharides, primarily galactomannan with a mannose:galactose ratio of 5:1. These plant-derived polysaccharides function as good stabilizing and thickening agents.
Cassia Gum is approved for use in Europe as food additive (E427) and approved as an additive (1f499) in Animal nutrition through commission regulation (EU) 2019/1947. It is approved as an additive (E499) in Pet food outside Europe. It is also approved for use in Japan and is listed as a food additive in The Ministry of Health and Welfare Announcement No.160 (10 August 1995). A panel of experts in the areas of toxicology, pharmacology and food science was assembled to review the safety of Cassia Gum for use as a thickening agent in human and pet foods in the United States. The available data on Cassia Gum and structurally related gums demonstrate a lack of toxic effects in animals. This review is the basis for the consideration of Cassia Gum as generally recognized as safe (GRAS) under conditions of its intended use as a thickening agent in human and pet foods.