To function correctly and remain healthy, our body requires the correct internal balance of water and electrolytes. Every day our body loses fluid and electrolytes via urine, sweat, saliva, and other bodily fluids. Usually, a normal, healthy diet will serve to replace lost electrolytes and fluid. Certain conditions such as vomiting and diarrhea, heavy sweating, or lack of food and fluid intake can lead to inadequate levels of fluid and electrolytes within our bodies. This is known as dehydration.