What is Xanthan Gum? Xanthan gum is a form of dietary fibre that can be used as an emulsifying agent. Xanthan Gum Benefits Xanthan Gum has a number of uses; it can be used to texture to food help ingredients to blend more effectively & also add fibre to the diet. Who is Xanthan Gum suitable for? Xanthan Gum is suitable for those looking to add fibre to food or to improve the blending qualities of food. A number of our customers purchase this along with products from the Health & Wellbeing range.