Healthy snack options for those who exercise regularly include nutrient-dense foods like Greek yogurt with fruit, mixed nuts, whole-grain toast with nut butter, and smoothies made with protein powder and vegetables. These snacks provide a balance of macronutrients to aid in recovery and sustain energy levels throughout the day. Ensuring adequate hydration with water or electrolyte-rich drinks is also crucial for overall performance and recovery, particularly post-workout to help replenish fluids lost through sweat.