💪 What Are Electrolytes & How Do They Help the Body

If you train intensely, if you run through your daily routine, or if you have ever felt sluggish after a hot day, you have surely heard about electrolytes and isotonic drinks. This buying guide will help you learn and choose the right product for your needs.

✨ What are electrolytes and isotonic drinks?

Electrolytes are minerals (such as sodium, potassium, magnesium, calcium, and chloride) found in the body's fluids.

Isotonic drinks are specially designed solutions that contain water, minerals, and a specific amount of carbohydrates (usually 6-8%). Their isotonic composition allows for rapid absorption of fluids and nutrients by the body.

💪 What Are Electrolytes & How Do They Help the Body

✨ What benefits do they have & Where do they help the body?

When you sweat, the body loses water and minerals. According to the European Food Safety Authority (EFSA):

Hydration & Water Absorption: Carbohydrate-electrolyte solutions enhance water absorption during physical exercise.
Muscle Function: Magnesium, potassium, and calcium contribute to normal muscle function.
Endurance Maintenance: Carbohydrate-electrolyte solutions help maintain endurance performance during prolonged endurance exercise.
Nervous System: Potassium, magnesium, and calcium contribute to the normal function of the nervous system.

✨ When should you take electrolytes?

During prolonged exercise: If your workout lasts more than 60 minutes (e.g. running, cycling, high-intensity training), isotonic solutions provide effective support.

During periods of high temperature: When elevated temperatures lead to heavy sweating.

During periods of increased fluid loss: For effective replenishment of the body's water balance.

Form	✅ Why choose it	⭐ Where it helps / Ideal Use
Effervescent Tablets	Compact option. Fits easily even in your pocket and gives your water a pleasant soda-like feel.	Ideal for quick hydration at the office or after a tiring day.
Powder	Budget-friendly option. You control the dose, the flavor intensity, and the amount of water in your bottle.	Ideal for the gym, endurance training, or for keeping a large supply at home.
Liquid Form	Ready to consume. No mixing required.	Ideal for immediate intake after training or on hot summer days.
Capsules / Pills	Hydration without a sweet taste. You get only the essential minerals (sodium, potassium) with no sugars, calories, or artificial sweeteners.	Ideal for endurance athletes or those who want a calorie-free intake.
Gel	Energy and hydration on-the-go. They take up no space, don’t need to be dissolved in water, and are absorbed quickly by the stomach without causing bloating.	The ally for long-distance runners and cycling.

✨ Are there options for children?

Yes. For children, it is recommended to choose specially designed electrolyte solutions for pediatric use, which provide the appropriate mineral ratios without unnecessary sugars or stimulants.

✨ Natural electrolytes: Is there an alternative?

Coconut water: A natural source of potassium and hydration.

Bananas: A source of potassium before or after exercise.

Watermelon: Rich in water and minerals.

Homemade isotonic drink: Water, citrus juice, a spoonful of honey, and a pinch of natural salt.

☞ Extra Tip:

Check product labels for sodium and carbohydrate content, choosing the right formula according to the duration and intensity of your activity.

“Food supplements do not replace a balanced diet. Do not exceed the recommended daily dose. Keep out of reach of small children. Consult your doctor if you are pregnant, breastfeeding, taking medication, or have health problems.”
“Products may bear an EOF Notification Number. The Notification Number does not serve as a marketing authorization from EOF. Always check the packaging of each product.”