When you're dieting, pay attention to what you drink, too. For instance, although juice and milk have important nutrients, they contain a lot of calories. Drink reduced-calorie juice or dilute juice with plain or sparkling water to help lower the calorie count. To help cut calories in milk yet still get your calcium, switch to fat-free milk. Water is still the best choice when it comes to satisfying thirst, though. And if you're hungry, snack on fresh fruit, not fruit juice.