Beyond Water

How to replenish and recharge after exercise

The term “electrolytes” refers to substances that have either a natural positive or negative charge when dissolved in water. The average adult’s body is about 60 percent water, with every fluid and cell utilizing electrolytes for chemical reactions, fluid balance, and helping the heart, brain, muscles, and nerves to function.

Electrolytes can be found in foods that we eat and drink. To keep them in balance, the kidneys filter out excess and excrete electrolytes from the body via urine or more rapidly via sweat. Symptoms like muscle cramps, fatigue, or dizziness, especially after exercise, could be a sign of electrolyte imbalance.

When taking part in intense or endurance exercise (longer than 75 minutes), electrolytes are lost via sweat, the body’s primary cooling mechanism. Athletes at higher altitudes or those exerting themselves with heavy gear may also benefit from electrolyte supplementation because staying hydrated in those conditions can be more challenging. During these times, a body may need the help of an electrolyte replacement to maintain balance.

For most people, moderate and low-intensity physical activity often doesn’t require supplementation beyond hydration (water).

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