Nutra
Electrolytes 101 for Active People
Water alone isn't always enough when you're sweating hard.
Sweat carries out sodium, potassium, and other minerals your muscles and nerves need. Replace only water and you can end up worse off on long, hot efforts.
When you need them
Water alone isn't always enough when you're sweating hard.
For sessions under an hour, water is usually fine. Go longer, hotter, or saltier-sweating and electrolytes help maintain performance and stave off cramps.
Start with sodium — it's the one you lose most — and adjust to how you feel.
The quick version
- Water alone isn't enough on long, hot efforts.
- Sodium is the one you lose most — start there.
- Under an hour? Water's usually fine.

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