For Adults · Sources checked 22 September 2026 · General education.
Start with water
Water is the everyday starting point. Fluid needs change with heat, activity, illness and individual circumstances. A refillable bottle can make drinking more convenient; buying an electrolyte powder is not necessary for every ordinary workout or desk day.
Healthdirect: dehydrationKnow which product you're looking at
Electrolyte products replace minerals lost in body fluids. Sports drinks may also supply carbohydrate for exercise. An oral rehydration product for illness has a different purpose from a sports drink; they should not be treated as interchangeable. A pharmacist can help with illness-related rehydration.
Healthdirect: dehydrationAustralian Institute of Sport: Group A sports foods and supplementsCheck before mixing
Read the water volume and serving directions on the actual package. Do not make it extra concentrated or assume one brand's scoop matches another. Check sodium, sugar and other ingredients against your needs. People with fluid or salt restrictions should follow their clinician's advice rather than a general drinking target.
Healthdirect: dehydration
