Water

Research shows that snacking in particular is often the result of mistaking thirst for hunger; write Tarla Dalal and Dr Swati Piramal in East Your Way to Good Health. Water has no calories, so it's great for filling up. Those who find it a plain bore can quaff low-calorie drinks that contain mostly water such as buttermilk, coconut water, and watermelon juice. Clear vegetable or dal soups are nutritious and don't have many calories, avoid cream soups.