Electrolytes & Hydration
Electrolyte powders, hydration mixes, and capsules for athletes and active people who lose sodium, potassium, and magnesium through sweat and need to replace them during or after training.
What to Look For
- Sodium content: Sodium is the most important electrolyte for rehydration. Look for at least 500mg sodium per serving for a workout electrolyte product; lower-sodium options suit daily hydration without heavy sweating.
- Full electrolyte profile: A complete electrolyte product should include sodium, potassium, magnesium, and calcium at meaningful doses. Some products add carbohydrates for endurance fueling; others are zero-sugar for general hydration.
- Added sugar vs. sugar-free: Products designed for endurance (like Tailwind) include carbohydrates to fuel long efforts. Pure electrolyte products for hydration should be zero-sugar. Check which type fits your activity.
Frequently Asked Questions
When do I need electrolytes versus plain water?
Plain water is fine for sessions under 60 minutes in moderate conditions. Electrolytes become important when you are training over 60 minutes, sweating heavily, training in heat, or doing back-to-back sessions. Plain water replaces volume but not the sodium, potassium, and magnesium lost through sweat.
What is the difference between electrolyte supplements and sports drinks?
Most commercial sports drinks are primarily sugar and sodium, designed to quickly restore blood glucose during long efforts. Electrolyte supplements tend to have more complete mineral profiles with less or no sugar. The right choice depends on whether you need carbohydrate fuel for long-duration exercise or just mineral replacement for general hydration.
How much sodium should a workout electrolyte supplement have?
For hard training sessions with significant sweat loss, 500–1000mg sodium per serving is the target range for most people. Very salty sweaters may need more. Lower-sweat activities or casual daily hydration work well with 200–500mg sodium.