"[Active individuals] sweat - thereby losing valuable electrolytes - even during cooler runs.
The past few weeks I have been using EnduroPacks liquid electrolytes and I am really impressed. The Enduropacks electrolyte replacement is an all natural, fast acting liquid that you squirt into your bottle. It has a very mild lemon-lime flavor, and is not sickly sweet or bitter. You hardly notice it's there. No fake sugars or unnecessary chemicals...just what you need when you need it."