what is the difference between diet pepsi and diet coke?
A 12-ounce can of Diet Coke contains 40 mg sodium, 45 mg caffeine, and 18 mg potassium. A 12-ounce can of Diet Pepsi contains 35 mg sodium, 35 mg caffeine, 30 mg potassium, 41 mg phosphorous, and 177 mg aspartame. There is no nutritional advantage of one drink over the other.