Hydration
2 productsElectrolytes, isotonic drinks and salt capsules: sodium, potassium and magnesium per serving, with or without sugar.
Hydration
This section holds effervescent electrolyte tablets and powders, isotonic drinks and gels, and salt capsules. The key number is sodium per serving, then potassium and magnesium. Isotonic drinks also contain carbohydrate; "sugar-free" powders only minerals.
Potassium, magnesium and chloride have EU-authorised claims — they show on a product when the mineral's daily dose is enough. More on the Electrolytes page.
FAQ
How do electrolytes differ from an isotonic drink?
Electrolytes are minerals; an isotonic drink holds minerals and carbohydrate in a set concentration.
How much sodium per serving?
Sports products carry 100–1000 mg. The exact figure is on the card.
Does a drink need sugar?
It depends on the effort and your aims; there are options with and without carbohydrate.
How much water per tablet?
Usually 500–750 ml; follow the pack.
Who should be careful?
With high blood pressure, kidney or heart conditions, or a salt-restricted diet, ask a doctor.