Electrolyte water and electrolyte drinks have grown in popularity. Electrolytes are charged minerals like sodium, potassium, magnesium and calcium. Your body uses them to maintain fluid balance, support nerve function, regulate muscle contractions—including your heartbeat and more. In short, you can’t survive without them. But that doesn’t mean you need to drink them every day. Unless you’ve been vomiting, had diarrhea, or exercised intensely in the heat for over an hour, your body—particularly