What is recommended during endurance exercise to maintain energy?

• A. Water only
• B. Carbohydrate-containing drinks
• C. Protein shakes
• D. Electrolyte-only beverages

Answer: (B)

During endurance exercise, the body relies on carbohydrates for quick, readily available energy. Carbohydrate-containing drinks deliver glucose to the bloodstream and working muscles as you go, helping to keep blood glucose levels steady and sparing muscle glycogen. This delays fatigue and helps sustain performance, while also providing fluids to stay hydrated. Water alone only replaces fluids and doesn’t supply energy, so performance can drop as glycogen runs low. Electrolyte-only beverages replace salts but provide no calories, so they won’t support energy during activity. Protein shakes supply amino acids and are slower to digest, making them less effective for immediate energy during endurance work. So, carbohydrate-containing drinks are the best option to maintain energy during endurance exercise.