AGAR AGAR FOOD GRADE 1000 GS is used as 100% vegetarian substitute for Gelatin in the food industry. Agar is a natural polysaccharide derived from Red seaweeds (Rhodo phyceae) mainly Gelidium and Gracilleria. Its ability to produce clear colorless, odorless, and natural gels without the support of other colloids has long been exploited by the food industry as a stabilizing and gelling agent.