Pre-Workout Fuel: What to Eat and Drink Before Exercising. Exercise is an essential part of a healthy lifestyle. It helps to keep our bodies fit and strong. But in order to get the most out of your workout, it's important to fuel up with the right kind of food and drinks beforehand. To help you get the necessary energy and nutrients for a good workout, we put together this complete guide, so you can give your body what's best!