Starches that supply carbohydrate polymers, as well as non-carbohydrate polymers which aid in digestion are known as:

Sources of starch that supply carbohydrate polymers, as well as non-carbohydrate polymers, that are collectively known as dietary fiber. Fiber is characterized by the fact that its constituent polymers cannot be degraded by luminal hydrolases. There are two general categories of dietary fiber: water-insoluble fibers (cellulose, hemicellulose, and lignin) and water-soluble fibers (gum and pectin). Psyllium, calcium polycarbophil, and methylcellulose are bulk laxatives that can be used as an alternative or adjunct to dietary fiber. Ref: Sullivan D.H., Johnson L.E. (2009). Chapter 38. Nutrition and Aging. In J.B. Halter, J.G. Ouslander, M.E. Tinetti, S. Studenski, K.P. High, S. Asthana (Eds), Hazzard's Geriatric Medicine and Gerontology, 6e.