You need to understand that metabolism plays a significant role when it comes to your well-being and your health. If you have a slow metabolism, it means that the more food you consume, the more chances that are of your body storing more and more fats. If your metabolism is really fast, your body burns through the food that you eat and does not store much of it. That is why, having a fast metabolism means that you can actually be skinny. Sometimes, eating less will actually wreck your metabolism in the long run. You should make sure that you eat sufficient fruits and vegetables.