2. Whole-fruit smoothie
“Fruit provides simple sugars that are easy to digest,” Mazur says. “They’re your body’s preferred source of energy for high-intensity workouts.” Check out our smoothie recipes Opens a New Window. for combinations that suit your preferences. Try whirling together banana, peanut butter, oats, flaxseeds, and almond milk (full recipe here Opens a New Window. ). Alternatively, go with half an avocado, frozen blueberries, banana, and almond milk.