Guar Gum from NOW Foods:

Acts As A Thickening Powder For Various Baking Applications!

This product works by thickening the dough to the proper consistency to prevent the escape of gas released by leavening. It is especially useful in allergy breads; rice, soy, potatao, etc 100% Natural. Derived entirely from guar beans. As the label on the Guar gum powder suggests this product is used as a baking aid for recipes that use gluten free flours. Gluten is needed to impart elasticity to the dough which would allow it hold in the gases formed by fermentation which causes the rising effect. Guar and xanthan gums act as a substitutes for the missing gluten in gluten free recipes. If you want to use this powder as a water soluble fiber, consider adding 1/2 teaspoon to 12-16oz of flitered water and drink immediately.