What are Electrolytes?

Electrolytes are minerals in your blood and other body fluids that carry an electric charge. The key players for runners are:

• Sodium (Salt): The most important one lost in sweat. Regulates fluid balance.
• Potassium: Prevents cramping.
• Magnesium: Helps muscles relax.
• Calcium: Aids muscle contraction.

Why Do Runners Need Them?

When you sweat, you don't just lose water; you lose salt. Drinking plain water replacess the fluid but dilutes the remaining salt in your body. Replenishing electrolytes helps:

1. Prevent cramps.
2. Maintain fluid balance (hydration).
3. Ensure proper nerve and muscle function.

Sources

• Sports drinks (Gatorade, Tailwind, etc.)
• Electrolyte tablets/powders (Nuun, Gu)
• Salty foods (pretzels, pickles)