What is Resistant dextrin? Resistant Dextrin- Soluble Corn Fiber is made from Non-GMO natural Corn starch/Tapioca starch, when heated under the condition of acidic condition, decomposed and gained low molecular soluble dextran (2000 dal)., also known as resistant dextrin. Resistant dextrin- Soluble Corn Fiber is a light yellow syrup or powder product. It is a soluble fiber of natural origin, derived from starches. It is easily soluble in water for a transparent solution with lightly sweet, convenient processing. It can be used in many kinds of foods such as protein bars, cereals, and beverages and nutritional products. But it has high stability and does not affect their original flavor. And it can control the digestion and absorption of sugar.