Electrolytes
Minerals that help support fluid balance, included in hydration products.
Last reviewed 19 Sept 2026
What is it?
Electrolytes include sodium, potassium, magnesium and other minerals involved in fluid balance and muscle function.
Why is it used?
Included to help replenish minerals lost through sweat during activity.
How does it work?
They contribute to fluid balance and normal muscle function.
Common uses
- Endurance training
- Hot-weather activity
- Rehydration
What does research suggest?
Research supports their role in fluid balance during prolonged sweating. Individual needs vary with conditions.
Potential benefits
- Supports fluid balance
- Relevant for prolonged sweating
- May complement endurance work
Limitations
- Most people get enough from food
- Needs vary by individual and conditions
- Excess is not better
Safety considerations
Generally well tolerated at typical doses. Excessive intake can cause issues; consult a healthcare professional if unsure.
Who should be cautious?
- People on blood-pressure medication
- Those with kidney concerns
Common supplement forms
- Drink mixes
- Capsules
- Effervescent tablets
Frequently asked questions
Do I need electrolytes for every workout?
Not usually. They become more relevant during prolonged or intense sweating.
Medical Disclaimer
This content is for general educational purposes only and is not personalised medical advice. Always consult a qualified healthcare professional before making changes to your diet, training or supplement use.