GU Energy Hydration Electrolyte Drink Tablets provide a hydration boost by supplementing water with electrolytes, and replenishing the sodium that is lost through sweat, for improved performance and recovery while training and racing. Each drink tab contains just 10 calories, in addition to 320 milligrams of sodium and 55 milligrams of potassium to help maintain water balance and enhance muscle function as electrolytes are depleted by exercise and exertion. Tablets are easily dissolved in 16 ounces of water, perfect for dropping into a sport bottle or bike bottle for hydration on-the-go, pre-workout, and while running, cycling, or exercising at the gym. The light, effervescent tablets are also appropriate for everyday use, during illness, travel, and hot weather, or anytime a boost in sustenance or recovery is needed. GU Energy Hydration Electrolyte Drink Tablets come in two sizes: a 4-count box or 8-count box of portable tubes, which fit easily in pockets, jerseys, and running belts. Each tube contains 12 tablets. All flavors are caffeine-free and made with vegan ingredients.Ideal for before, during, and after workouts. This product is free of caffeine, made with vegan ingredients, keto-friendly, and only has 1 gram of sugar. Each 10-calorie tablet contains 320 milligrams of sodium and 55 milligrams of potassium to help maintain water balance as electrolytes are depleted. Box includes four portable tubes, each containing 12 tablets, in four different flavors: Lemon Lime, Orange, Strawberry Lemonade, and Tri-Berry, 48 total servings;Keep a tube in your gym bag; car; purse; luggage; or anywhere you'll want to replenish your hydration. Tablets are easily dissolved in 16 ounces of water, and have a light, effervescent flavor, making it the perfect hydration tab for sensitive stomachs.Best Sellers Rank: See Top 100 in Health & Household. Package Information: Bag,Tube. Number of Items: 4. Flavor: Assorted Flavors. Item Form: Tablet. Brand: GU Energy. International Shipping: This item is not eligible for international shipping. Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues. Country of Origin: China. : B0756QVFM5. Manufacturer: GU Energy Labs. Date First Available: June 29, 2016. Product Dimensions: 9.5 x 6.75 x 2 inches; 0.01 Ounces. Is Discontinued By Manufacturer: No.