Proper hydration is necessary for optimal performance. At the right levels, there is faster transport of electrolytes, oxygen, and energy in the bloodstream so the heart is working most efficiently. Nathan Catalyst actually helps your body absorb, and therefore benefit from, water. Turn water into power with Nathan Catalyst, a drink mix with the perfect blend of electrolytes, vitamins, and taste now in four flavors! Over 400 mg of sodium and potassium!