Electrolyte replacement, proper hydration and energy are some benefits of sports drinks. The energy source is carbohydrates, usually simple sugars, which potentially fuel strength training workouts and longer bouts of cardio.
Sports drinks contain electrolytes, such as potassium, calcium and sodium. During the course of activity, the body loses electrolytes through sweating. Insufficient electrolytes can result in dehydration, fatigue and muscle cramps.
Electrolytes promote a healthy pH balance within the blood and help cells to maintain the stability of their walls. Electrolytes are also essential for proper fluid balance within the body. In addition to fueling workouts, post-workout sports drinks with carbohydrates help to restore glycogen lost during grueling routines.