Gatorade does go bad and has a printed best-by date on the bottle. The best-by date on Gatorade acts a guide in regard to the freshness of the product.
An unopened bottle of Gatorade can be safely stored in the pantry or refrigerator for up to 9 months past the printed date, according to EatByDate. An opened bottle of Gatorade can be stored in the refrigerator for 3 to 5 days before being discarded.
Powdered Gatorade can be kept in the pantry for 6 to 8 months past the printed date. To extend the shelf life, a person should store Gatorade in cool and dry locations.