Benefiber is a food material obtained from vegetable source has been used in cereals, juices, shakes, yogurt, soups, backed goods, and as a fiber source in enteral nutrition products. It has undergone extensive toxicity testing and found to be safe (41). In human volunteer studies (38, 39), enteral nutrition products supplemented with Benefiber 20 g/L found to be safe. Two clinical trials (36, Alam et al., unpublished data) in children have been performed in ICDDR,B recently - in one study ORS was supplemented with Brenefiber 20 g/L and in other study comminuted chicken-based diet was supplemented with Benefiber 20 g/L. No adverse effects have been noted in these studies. In the proposed study, Benefiber will be supplemented with ORS either 25 g/L or 50 g/L for the treatment of adult cholera. As the cholera patients have profuse watery stools with short transit time, 50% of fibers are expected to excrete through stool unchanged. As the treatment of cholera is for a short duration (2-3 days), so we do not anticipate any adverse effects.