No. 1 pharmacist & pediatrician recommended brand for hydration. + zinc & selenium. PreActiv prebiotics. Key nutrients for immune support (Nutrients include: Zinc and selerium). Prebiotics to help promote digestive health. Pedialyte is designed to prevent dehydration (for mild to moderate dehydration) more effectively than common beverages. Sports drink. Soda. 100% apple juice. Water. Pedialyte AdvancedCare with immune support quickly replenishes fluids and electrolytes to help prevent dehydration due to: Vomiting & diarrhea, Heat exhaustion, Intense exercise, and Travel. Ready to use.