Electrolytes, which are electrically charged minerals, are essential for hydration because they regulate the flow of water into and out of cells and maintain the body's fluid balance. Key electrolytes like sodium, potassium, calcium, and magnesium are crucial for vital functions, including nerve and muscle function, heart rhythm, and blood pressure. While a balanced diet provides most people with sufficient electrolytes, situations involving rapid fluid loss, such as heavy sweating or illness, may require electrolyte-rich beverages to prevent dehydration and maintain proper cellular function
