I have a friend who gained more weight while breastfeeding, then while pregnant! This last time around, she made some changes. The first, being water. Like Sarah said, hunger and dehydration are often confused. She also would eat fruit for a sweet snack. Or, she would freeze grapes, which she said were delicious and like a dessert. Also, she would cover 1/4 of a banana with chocolate and freeze it. She was getting a small amount of chocolate, but not too much. Make sure your calories count. Eat things that are filling and have fiber. Don't eat anything white (white pastas, bread, etc.) as those are essentially sugar. Whole grains and complex carbs fill you more. Eat veggies as much as you can. Carrot sticks and hummus are a great snack. Snacks with proteins will fill you. Greek Yogurt (The flavored ones are loaded with sugar, you are better off adding fruit to plain,) eggs, cheese, etc. Basically, she made sure she was eating filling foods and nothing super sugary or processed. (Processed food = sugar. If it's pre-made, in a box, or a frozen meal of some sort...it's empty pointless calories.