What are the best foods to increase energy?

Fix the cause: Lack of energy can come from a variety of situations. Dehydration (not drinking at least 5 cups of water a day), lack of sleep/poor sleep, skipping meals, stress, sleep apnea/snoring, chronic sinus problems, caffeine withdrawal, chronic illness (such as anemia) or allergies can cause low energy. See your doctor.

Complex carbs.: For sustained energy through the morning, focus on complex carbohydrates and fiber. Foods like high fiber breakfast cereals, multi grain bread for toast and berries,will keep you going. A B complex vitamin will help your body use the carbohydrates efficiently.