Oral rehydration therapy (ORT) involves rehydrating a dehydrated person through oral intake and corrects water and electrolyte deficits. ORT has been shown to effectively treat 90-95% of cases of cholera and acute diarrhea. The principle behind ORT is that glucose enhances intestinal absorption of salt and water when taken orally, correcting electrolyte and water deficits. Reduced osmolarity ORS is the most effective type, decreasing stool output and need for IV therapy in children with non-cholera diarrhea. ORT is a low-cost treatment that can be administered at home using readily available ingredients. It has significantly reduced mortality from cholera and diarrhea globally.