7 Best Electrolyte Tablets for Running in 2026

Runner dropping electrolyte tablets into a reusable water bottle before a morning training session in a British park

Here’s the short answer before we get into the weeds: electrolyte tablets for running are effervescent or dissolvable tabs, usually built around sodium, potassium, calcium and magnesium, designed to replace what you lose through sweat during a run. Drop one in your bottle, wait for the fizz to settle, and you’ve got a hydration mix … Read more