EmergenC Lemon Lime is a powder that fizzes in water and provides 1000mg vitamin C, mineral electrolytes, B vitamins and potassium which may be beneficial for improving immune function, providing antioxidant protection, reducing the effects of stress, replenishing nutrients lost during exercise, and enhancing energy and longevity. Vitamin C is essential for the formation and maintenance of connective tissue, is a powerful antioxidant, and is highly involved in normal immune function. The single cell is the unit of life and each of our bodies is composed of some 70 trillion of these tiny factories. So, if we can take care of them, they will take care of us. Yet the major mineral activator within the cells is Potassium (K) present in healthy cells at levels 20 times those of sodium. So when you add water to the EmergenC powder, it immediately effervesces to a powerful, delicious, and healthful activator of your metabolic functions, with the astounding benefit of a full gram of Mineral Ascorbates, Plus the B Vitamins.