Be sure that all the meals you eat before your workout, including the one immediately before, include about 40g of slow-digesting carbs such as oatmeal, sweet potatoes, fruit, or whole-wheat bread.
In the four hours before your workout, avoid eating large amounts of fats, such as the obvious fast-food fare and packaged foods
About two hours before you hit the gym, include a green salad with low-fat dressing with your meal.
A cup of cooked soba noodles before workouts can help get more pre-workout creatine into your muscle cells without blunting fat loss, which can occur from high insulin spikes.