What is the primary function of electrolytes in sports nutrition?

The primary function of electrolytes in sports nutrition is to maintain fluid balance and support muscle contractions. Electrolytes, such as sodium, potassium, calcium, and magnesium, are essential minerals that dissolve in bodily fluids and carry an electrical charge. They play a crucial role in regulating hydration levels, ensuring that cells function properly, and facilitating the transmission of nerve impulses, which in turn supports muscle contraction.

During physical activity, especially when engaging in prolonged or intense exercise, the body loses electrolytes through sweat. Replenishing these electrolytes is vital to prevent dehydration and maintain optimal performance. An imbalance in electrolyte levels can lead to cramps, fatigue, and other performance-related issues. Thus, the intake of electrolytes before, during, and after exercise is important for athletes to sustain their strength, endurance, and overall health during physical activities. This underscores their pivotal role in sports nutrition, making option B the correct choice.