Electrolytes & blood tests

Electrolytes are essential minerals—such as sodium, potassium, calcium, magnesium, chloride, and phosphate—that carry an electric charge and play a vital role in hydration, nerve function, muscle contraction, and pH balance. Proper electrolyte levels support energy production, heart rhythm, fluid balance, and recovery after exercise or illness. Imbalances can lead to dehydration, cramps, fatigue, or serious health concerns. Learn how electrolytes work, the best dietary sources, and when supplementation may be necessary for athletes, active individuals, or those with medical conditions affecting fluid balance.

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