Drink water: Staying hydrated helps keep your body running.

Eat protein and carbohydrates: they are great fuel for a workout. Carbohydrates provide your muscles with energy, while protein helps build them. Try chocolate milk, fruit, and a boiled egg, or a peanut butter and banana smoothie.

Take vitamins: Naturally occurring vitamins and minerals, such as magnesium, help your body produce energy. A vitamin or mineral deficiency may cause fatigue. If you feel like you always need an energy boost, talk to your doctor about having a nutritional assessment or adding a vitamin supplement to your diet.

Be active: When you exercise, your serotonin and endorphin levels increase shortly after, which helps you feel better. Also, those who exercise regularly often have more energy.