Many people don’t eat before they train because they believe exercising on an empty stomach will burn more fat, however recent research in the International Journal of Sports Nutrition and Exercise Metabolism concluded that exercisers who ate before they used the treadmill for 36minutes were shown to have a significantly higher fat-burning rate for as long as 24 hours than those who ate post-workout even though the same amount of calories were consumed during the day by both groups.
One possible explanation for this could be depleted glycogen. When you sleep you burn approximately 1000 calories, which will use up all the glycogen stores in your body. In order to burn fat, you need glycogen, which you get mainly from carbohydrates. Another problem that can commonly occur is that after your workout you can feel extremely hungry, which often leads to overeating.Â In this case, if your intention was to lose weight, you may as well have put your feet up on the couch for an hour! In addition, you will also find that you won’t be able to train at as higher intensity and therefore won’t burn as many calories as if you’d eaten prior to exercise.
It is however hard for some people to feel hungry before they exercise specially in the morning. In this case a small amount of fruit is often a good choice.