The beverage was first developed in 1965 by researchers at the University of Florida , to replenish the combination of water , carbohydrates , and electrolytes that the school 's student-athletes lost in sweat during rigorous athletic competitions .
The beverage was first developed in 1965 by researchers at the University of Florida , to replenish the combination of water , carbohydrates , and electrolytes that the school 's student-athletes lost ( in sweat ) during rigorous athletic competitions .