2. If you are engaged in strenuous exercise such as fitness, take glucose (brewed in warm water) half an hour before exercise. It can improve blood sugar supply and enhance training energy supply.
3. Red Bull can make people nervous, so it is not recommended to take it frequently. Take it half an hour before exercise. If it is short, it may not be absorbed. If it takes a long time, it may not last until the end of the exercise.