Category: Hydration

Electrolytes and Performance: Sodium, Potassium, Magnesium

By FitMetricsHub Editorial Team
2026-06-25
5 min read

1. The Roles of Key Electrolytes

Sodium: Regulates extracellular fluid balance, blood pressure, and active nerve signals. It is the primary mineral lost in sweat. Potassium: Supports intracellular hydration, heart rhythm, and muscular contraction.
  • Magnesium: Crucial for energy production, protein synthesis, and muscle relaxation.

2. Rehydration Guidelines

Replenishing these key electrolytes alongside fluids helps prevent cramping, supports nerve function, and accelerates recovery.

Article FAQ Schema

Review additional questions and references discussed in this health literature.

Sweat contains an average of 900mg of sodium per Liter, but individual losses can vary from 500mg to over 1500mg.

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