The future of electrolytes is frozen Powerade Sports Bars. A â€œSlam Dunkâ€ of a concept. Powerade Sports Freezer Bars come in 2 flavor variety packs: Mountain Berry Blast and Fruit Punch. Each bar contains 4 electrolytes to replenish the body: Sodium, Potassium, Calcium, and Magnesium. Powerade Sports Freezer Bars electrolyte levels match the ready-to-drink Powerade on a per ounce basis. Contains no artificial flavors and is formulated with B-Vitamins. Kosher and Gluten-Free freezer bars.