10/02/2026
Sodium is the electrolyte that matters most for holding fluid during activity - youth athletes (ages 10-18) often need about 3-4 g/day, and ages 6-9 about 2-3 g/day, spread across the day; food first, salt second. Read the full sodium-first hydration lesson for parents and practical tips to prevent late-practice drop-off: https://wix.to/3GLoVix 🔬💧⚽
How much electrolytes does my athlete need? Sodium is the one that counts — 3–4 g a day at ages 10–18 and 2–3 g at ages 6–9. Why potassium is not the lever.