Let experience be your guide

Keep in mind that the length and intensity of your activity will determine how often and what you should eat and drink. For example, you'll need more energy from food to run a marathon than to walk a few miles. And try not to include any new products in your diet before a long-duration sports event. It's best to have previous experience to see how your system handles the food.

When it comes to eating and exercise, everyone is different. So pay attention to how you feel during your workout and to your overall performance. Let your experience guide you on which pre- and post-exercise eating habits work best for you. Consider keeping a journal to monitor how your body reacts to meals and snacks so that you can adjust your diet for optimal performance.