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Types of Electrolytes: What They Do and How to Choose
The main types of electrolytes are sodium, potassium, magnesium, calcium, and chloride. Each one supports hydration and performance in a different way: sodium and chloride regulate fluid retention and blood volume; potassium supports nerve signals and muscle contractions; magnesium helps muscles relax and supports energy metabolism; calcium drives muscle contraction and cellular communication. A “good” electrolyte supplement balances these types based on sweat loss, activity, climate, and diet—not hype.
