Which of the following is/are water soluble dietary fiber(s)? P. Xylose Q. Lactulose R. Hemicellulose S. Xanthan

Dietary fiber is the indigestible portion of food derived from plants and waste of animals that eat dietary fiber. Dietary fibers are of two types- (i) Soluble fiber dissolves in water. It is readily fermented in the colon into gases and physiologically active byproducts, and can be prebiotic and/or viscous. Soluble fibers tend to slow the movement of food through the system. Like- xylose, latulose etc. (ii) Insoluble fiber does not dissolve in water. It can be metabolically inert and provide bulking or prebiotic, metabolically fermenting in the large intestine. Bulking fibers absorb water as they move through the digestive system, easing defecation. Like- hemicelluloses, xanthan etc.