Pre-workout supplements are intended to boost energy so you can work out harder and longer. Taking pre-workout can cause side effects like nausea and shakiness due to high caffeine content.

Lori Barranon said her daughter would gulp up on energy drinks and caffeine to ensure she had the 'buzz' during the workout.

Katie Donnell’s mother is speaking out about the dangers of energy drinks, calling them “harmful and deadly” in the wake of ...