Bob’s Red Mill Psyllium Fiber Powder is made from the outer husks of the seed of the psyllium plant that have been ground to a super-fine texture. Psyllium husk powder is an outstanding source of dietary fiber and provides a remarkable amount of soluble fiber. Simplify your daily fiber intake and add unflavored Psyllium Fiber Powder to smoothies for an easy fiber boost. It can also be used in gluten free or vegan baked goods as a substitute for xanthan gum or eggs.