UF Sideline Experiment That Helped Change Sports
On October 2, 1965, the University of Florida Gators faced fifth-ranked Louisiana State University in Gainesville. Florida was the underdog, and the heat and humidity added another challenge to an already difficult game. Along the Gators’ sideline, however, a medical experiment was underway. Players were drinking a mixture developed by university researchers trying to understand why strenuous exercise in Florida’s heat left so many athletes exhausted and ill.
Florida defeated LSU, 14–7. Coach Ray Graves credited his team’s second-half stamina partly to the experimental beverage. The drink would become known around the world as Gatorade.
Its beginnings lay in a problem that reached beyond winning football games. Players were suffering serious heat-related illness. At the University of Florida College of Medicine, Dr. J. Robert Cade and fellow researchers Dana Shires, H. James “Jim” Free, and Alejandro de Quesada began looking for a practical solution.
These were physicians whose work included kidney medicine, dialysis, and the body’s delicate balance of fluids and salts. The football field presented a problem they could investigate with the same scientific curiosity they brought to the hospital.
“That question changed our lives,” Cade later said of the inquiry into why Florida’s players were getting sick in the heat.
The researchers collected samples from players and examined what exercise was doing to their bodies. They found disturbed electrolyte levels, low blood sugar, and reduced blood volume. Their response was to develop a drink containing water, salts, and sugar to help replace what the players needed during exertion. The research connected the medical school directly to the university’s practice fields.
Making the mixture drinkable proved to be its own challenge. Early versions tasted so unpleasant that some people sampling them spat them out. Mary Cade, the physician’s wife, suggested adding lemon juice. That contribution helped turn an unappealing laboratory mixture into something players could tolerate.
After encouraging results during a football scrimmage, Graves requested a batch for the October 2 game against LSU. That distinction matters: October 2 marks a celebrated early competitive use of Gatorade, rather than a single moment when someone suddenly invented it. The drink emerged through research, mixing, tasting, and field testing.
The victory gave the experiment a compelling story. Florida had beaten a highly ranked opponent, and its coach believed the new drink had helped his players endure. A football result alone could not prove how much any beverage contributed to a win, but Graves’s endorsement helped establish the connection between the developing product and athletic performance.
The university’s account records another early nickname: “Cade’s Cola.” The name that endured tied the drink to the team that helped test it, the Gators.
The lasting significance reaches beyond the scoreboard. Gatorade became an example of university research finding an application far outside the laboratory. Its royalties also supported further research. By 2015, the University of Florida reported that Gatorade royalties had funded more than $250 million in research projects, including work far removed from football. A question about athletes struggling in the Florida heat had helped create opportunities for other scientists to pursue questions of their own.
There is a physical place to remember that beginning. The “Gatorade’s Birthplace” historical marker, erected in 2007, stands between the O’Connell Center and Florida Field in Gainesville. Cade attended its dedication on November 16, 2007. It commemorates the researchers, the nearby field testing, and the concern for human health that set the work in motion.
On October 2, 1965, Florida won a football game. The experiment on its sideline would have a much longer life.