What do electrolytes actually do?

Electrolytes — sodium, potassium, magnesium, and others — are minerals that carry an electrical charge and are involved in fluid balance, nerve signaling, and muscle function; you lose them, sodium most of all, through sweat. Replacing them supports normal hydration, particularly around heavy activity, heat, or low food intake. That is the factual, non-promissory version — we describe what these minerals do in the body and what a mix provides on its panel, without claiming a specific product fixes fatigue, cramps, or anything else. The dose on the label, read against your situation, is what actually matters.