This document discusses diarrhea as a leading killer of children worldwide, claiming 580,000 lives per year. It recommends oral rehydration, continued feeding including breastfeeding, zinc supplementation, and low osmolarity oral rehydration solution as key treatments to reduce the burden of childhood diarrhea. Clinical trials show that low osmolarity ORS and zinc supplementation effectively reduce the duration and severity of diarrhea. Their widespread use has led to over a 50% reduction in diarrhea deaths from 2000-2013. Zinc also helps treat pneumonia in children.