Can fasted workouts help you achieve your fitness goals? Yes.... but it is not for everyone and all styles of training. In some situations fasted training can actually be detrimental to your performance and body composition goals.
Some of the benefits of fasted workouts include increasing aerobic capacity and increasing fat utilisation (the use of fat as a fuel source). However, there are certain people who benefit more from fasted workouts than others. If your main goal is to gain muscle mass or you are trying to improve your anaerobic capacity (the short, sharp stuff) it would be detrimental.
To read more about the do's and dont's of fasted workouts click here