"Electrolytes" get thrown around a lot.
But they're not one thing - they're minerals that help your body stay hydrated, move fluid, and keep your muscles working when you're sweating.
The ones that matter most:
Sodium
The driver of hydration.
Sodium helps your body hold onto the water you drink instead of flushing it out. It's also essential for nerve signals and muscle contractions.
And most importantly, it's the main thing you lose in sweat.
Potassium
Works with sodium to balance fluids in your body.
If sodium manages fluid outside your cells, potassium manages it inside.
It also supports muscle function and helps reduce cramping during longer efforts.
Magnesium
The quiet one - but critical!
Magnesium supports muscle relaxation, energy production, and helps fight fatigue.
It becomes especially important as training volume increases.
Why sodium is so important
When you sweat, you're losing more than water - you're losing salt.
And that salt is mostly sodium.
That's why:
- Water alone isn't enough
- Low sodium leads to fatigue, headaches, and drop-offs in performance
- Replacing sodium is what actually improves hydration
If your goal is to perform better, sodium is the lever.
The simple takeaway
- Sodium → keeps you hydrated
- Potassium → keeps cells balanced
- Magnesium → keeps muscles working
Miss sodium, and hydration falls apart.