What Is Guar Gum? Guar gum, a very water-soluble fiber, is made from the ground-up seed of a guar plant. It is a common ingredient in many foods and beverages and is used in several medicines and medical procedures. Guar gum is a natural fiber used to thicken food, specifically sauces, and soups. It’s found… Read More »Is Guar Gum Gluten Free? Read Here!