Xanthan Gum gets its name from the strain of bacteria used during the fermentation process. Xanthan Gum is used in dairy products and salad dressings as a thickening agent and stabilizer. It also prevents ice crystals from forming in ice creams and adds substance to low- or no-fat dairy products. Xanthan Gum can also be used as a substitute for wheat gluten in gluten-free breads, pastas and other flour-based food products.