How Much Water Should You Drink After a Workout? A Practical Post-Gym Hydration Guide
Why post-workout hydration matters more than you think
You can lose anywhere from 0.5 to 2 litres of fluid in a hard hour at the gym, and with it goes sodium, potassium and magnesium. Even mild dehydration of about 2% of body weight measurably hurts strength, endurance and focus. Rehydrating well after training is one of the cheapest performance upgrades there is, and it directly shapes how you feel tomorrow.
The simple math: replace 125-150% of what you lost
Weigh yourself before and after a session. Each kilogram lost is roughly a litre of sweat, and research suggests drinking about 1.25 to 1.5 litres of fluid per kilogram lost to fully rehydrate, since you keep losing fluid through urine afterwards. If you do not weigh yourself, a practical rule is 500 to 750 ml within 30 minutes of finishing, then keep sipping through the evening.
When electrolytes beat plain water
For sessions under an hour at moderate intensity, water is usually enough. For long, sweaty sessions, hot gyms, or two-a-days, plain water alone can leave you diluted: you need sodium to actually hold onto the fluid you drink. That is where an electrolyte drink mix earns its place.
A post-workout electrolyte drink like our Hydration Powder in Watermelon, Blue Raspberry or Orange replenishes sodium, potassium and magnesium, and a portable tube of Electrolyte Tablets covers you on the go.
A 3-step post-gym hydration protocol
1. Right after training: 500 ml of fluid with electrolytes. 2. Within 60 minutes: a recovery meal or shake with protein and carbs, which helps your body absorb the fluid. 3. Through the evening: keep water nearby and check your urine is pale. That is it, and it compounds session after session.
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