Electrolytes Explained: Hydration That Supports Performance

Hydration is about more than just water. When you sweat, you lose electrolytes — minerals your body needs to stay hydrated and perform. Here is what they do and how to get hydration right around training.

What are electrolytes?

Electrolytes are minerals that carry an electrical charge and help regulate fluid balance, nerve signals and muscle contractions. The key ones for active people are sodium, potassium, magnesium and calcium. You lose them mainly through sweat — which is why plain water alone does not always cut it after a hard session.

Why they matter for performance

When electrolyte levels drop through heavy sweating, hydration and normal muscle function can suffer. Replacing fluid and electrolytes helps you stay properly hydrated, which supports how you feel and perform during longer, hotter or more intense training.

How much water do you need?

• Daily baseline: aim for pale-yellow urine as a simple guide.
• Before training: drink 400–600 ml in the couple of hours beforehand.
• During: sip regularly, especially in sessions over ~60 minutes or in the heat.
• After: replace fluid and electrolytes lost through sweat.

When to add electrolytes

Everyday, easy activity is usually fine with water and a balanced diet. Reach for electrolytes when you are sweating heavily — long or intense sessions, hot conditions, or endurance work — and when you simply want to make hydration effortless and consistent.

Easy ways to stay topped up

• On the go: Mr Gains Hydration Sticks — electrolytes plus vitamin C, zero sugar, zero caffeine, in a pocket-sized stick.
• All-day hydration with a lift: Mr Gains Hydro Charge — 5x electrolytes and essential minerals, zero sugar.
• See everything: the Mr Gains Hydration range.

The Mr Gains standard

No sugar, no artificial junk, just effective hydration you can take daily. If you also want clean caffeine for training, pair it with our energy range. Hydrate well and everything else — focus, output, recovery — gets easier.

This article is for general information only and is not medical advice. Hydration needs vary by person, sport and climate — consult a qualified professional for personalised guidance.