Yes, it is definitely better to eat before your exercise workout. But it needs to discuss with a sports physiologist or Gym manager about the diet and the amount of the specified diet. But eating for the exercise will help the individual to perform the exercise better, to avoid hunger, improve mental concentration and sense of well-being and low blood sugar levels can be avoided. For more information, please check this website for your reference: http://www.goaskalice.columbia.edu/3306.html
Eating before or after is difficult for one to decide. When you eat you need a couple hours to make sure your food is digested well before you exercise. Otherwise it would be better to wait and eat after you exercise.