Gatorade Perform (the original) (8fl oz): similar to the Endurance formulation but with 110mg sodium and 45mg potassium. HEED (1 scoop in ~16oz water): 100 calories, 26 grams carbohydrate, 40mg sodium, 60mg chloride, 25mg potassium, as well as other minerals, Vitamin B6, and select amino acids.