The term 'Setting Agent' is a job description for someone who uses pectin, a natural substance found in fruits and vegetables, to thicken or set food products. Pectin is a polysaccharide that is used as a gelling agent, thickening agent, and stabilizer in food. It is also used in jams, jellies, and other products to give them a thicker consistency. Setting Agents use pectin to help create the desired texture and consistency of food products.