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Hydration & electrolytes

What are electrolytes, and do you need them every day?

Understand what electrolytes do, when extra minerals may be useful, and why everyday hydration does not always need a supplement.

The essentials 4 min read
Glass of water beside pale sage mineral forms on an ivory stone surface

At a glance

  • Minerals with a roleElectrolytes help with fluid balance and nerve and muscle function.
  • Start with your routineEveryday electrolyte needs do not mean everyone needs a daily supplement.
  • Read the whole servingMineral amounts, water volume and your circumstances belong together.

Electrolytes are minerals that carry an electrical charge in water or body fluids. Sodium, potassium and magnesium are examples. Your body needs electrolytes every day, but that does not mean everyone needs an electrolyte supplement every day. [1]

For ordinary day-to-day hydration, water and a varied diet are a sensible starting point. Whether an extra drink mix is useful depends on the occasion, your diet and your health circumstances. [2]

What do electrolytes do?

Electrolytes help regulate fluid balance and support nerve and muscle function. They have different roles, so the word “electrolytes” is not a single ingredient or a measure of how much you need. [1]

Three familiar electrolytes and their roles
Mineral Examples of its role in the body
Sodium Helps manage fluid balance and supports nerves and muscles.
Potassium Supports the normal function of cells, muscles and the heart.
Magnesium Contributes to normal muscle, nerve and heart function.

You get electrolytes through food and drinks. A flavoured sachet is one way to include some minerals in a drink; its convenience does not establish a mineral deficiency. [1]

Do you need extra electrolytes every day?

Start with the day you actually have. An ordinary workday, a short walk and several hours of demanding exercise in the heat are different situations. A product label cannot turn them into one universal serving recommendation.

Regular access to water, the foods you eat and any individual advice you have received matter more than making a supplement an automatic daily habit. Choosing a flavour you enjoy is a preference; it is a separate question from needing extra minerals.

When do sweat losses or illness change the question?

The Australian Institute of Sport discusses electrolyte supplements for specific circumstances, including substantial sweat and sodium losses during prolonged exercise. A sports dietitian can help tailor an exercise fluid plan. Hydration, sodium replacement and carbohydrate fuel may need separate consideration. [3]

Questions to ask before choosing a drink
Your situation Useful next question
An ordinary day Am I drinking regularly and eating a varied diet?
A long or very sweaty exercise session What are the fluid, sodium and fuelling needs of this session?
A preference for a flavoured drink Do I like the flavour and ingredients at the labelled dilution?
Illness or a prescribed fluid restriction What advice has my health professional given me? Is a specific oral rehydration product required?

A general hydration mix is not a substitute for an oral rehydration solution recommended for illness. If you have a condition affecting fluid or mineral balance, take medicines, or have been given fluid or sodium limits, check the actual ingredients with your health professional. [1] [2] [3]

Read the amounts in the prepared serving

The word “electrolytes” does not tell you how much sodium, potassium or magnesium a drink supplies. Read the amount per serving beside the mixing directions. Different products can ask for very different quantities of water.

A Coreffect label example: HydraGo+

1 sachet · 5 g powder · 600 mL water

Each serving declares 300 mg sodium, 150 mg potassium and 40 mg magnesium.

HydraGo+ is our own product. These are composition facts, rather than a personalised recommendation or proof that the mix suits every exercise session. Check sugar, sweeteners and other ingredients as well as the minerals.

A practical daily-hydration check

  1. Identify the occasion: ordinary hydration, an exercise plan or a medical question.
  2. Look at your existing food and fluid routine before adding a product.
  3. Read the ingredients, mineral amounts and water volume for the directed serving.
  4. Choose a format you can prepare correctly and that fits your circumstances.

For the next step, read how to choose an electrolyte powder or our sugar and sweetener label guide. To explore a product, see the hydration range and HydraGo+ formula and directions.

Sources and approach

  1. US National Library of Medicine — Fluid and electrolyte balance
  2. Healthdirect Australia — Drinking water and your health
  3. Australian Institute of Sport — Electrolyte supplements: how and when to use them

Sources checked on 8 October 2026. Prepared by Coreffect Health using the sources linked above and our genuine product labels. This is general educational information. See our editorial approach and health information disclaimer.

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