Alacer Corporation Emergen C Lemon/Lime is a delicious and invigorating drink with eight times as much potassium as Gatorade. Emergen-C fizzes in water to furnish 1000 mg of Vitamin C, B Vitamins and 28 different mineral electrolytes. Emergen-C is used to provide nutritional support for a variety of needs such as starting the day, as an energy booster for the late afternoons and to relieve general stress. Sweetened with glucose, Emergen-C comes in lemon-lime flavor.