When exercising or spending time in hot climates, drinking plain water is often not enough to maintain proper hydration. The body requires a balance of water and electrolytes to efficiently absorb fluids and prevent dehydration. [1]
While the human body can absorb plain water on its own, the process is less efficient without electrolytes. These essential minerals are lost through sweat during intense physical activity. Replacing sodium, potassium, calcium, and magnesium is critical for maintaining fluid balance, muscle function, and nerve signaling.
“Replacing sodium, potassium, calcium, and magnesium is critical for maintaining fluid balance, muscle function, and nerve signaling.”
Humans can lose up to three liters of sweat per hour during strenuous exercise in hot weather. A loss of just 1% of body weight due to water depletion can trigger symptoms of dehydration, such as headaches, dizziness, and fatigue. To combat this, individuals working outdoors, gardening, or playing sports should consume eight ounces of water every 15 to 20 minutes during the activity. Hydration should continue after the activity at approximately 1 liter per hour.
Maintaining a daily intake of at least eight glasses of water establishes a baseline for hydration. Incorporating water-rich foods into a regular diet, such as cucumbers, watermelon, and pineapple, also contributes to overall fluid retention and electrolyte balance. Additionally, creating custom hydration beverages at home offers a cost-effective way to replace lost fluids.
Notes:
- ^Dole. (2026). Balancing water and electrolytes for optimal hydration – Dole. Dole. Retrieved from https://www.dole.com/blog/from-sweat-to-sip (go back ↩)
