Beans

Inexpensive, filling, and versatile, beans are a great source of protein. Beans are also high in fiber and slow to digest. That means you feel full longer, which may stop you from eating more.

Soup

Start a meal with a cup of soup, and you may end up eating less. It doesn’t matter if the soup is chunky or pureed, as long as it’s broth-based. You want to keep the soup to 100 to 150 calories a serving. So skip the dollops of cream and butter.

Dark chocolate

Want to enjoy chocolate between meals? Pick a square or two of dark over the milky version. In one study, chocolate lovers who were given dark chocolate ate 15% less pizza a few hours later than those who had eaten milk chocolate.

Pureed vegetables

You can add more veggies to your diet, enjoy your "cheat” foods, and cut back on the calories you’re eating, all at the same time. When Penn State researchers added pureed cauliflower and zucchini to mac and cheese, people seemed to like the dish just as much. But they ate 200 to 350 fewer calories. Those healthy vegetables added low-cal bulk to the tasty dish.

Eggs and sausage

A protein-rich breakfast may help you resist snack attacks throughout the day. In a study of a group of obese young women, those who started the day with 35 grams of protein -- that’s probably way more than you’re eating -- felt fuller right away. The women ate a 350-calorie breakfast that included eggs and a beef sausage patty.

Nuts

For a great snack on the run, take a small handful of almonds, peanuts, walnuts, or pecans. Research shows that when people munch on nuts, they automatically eat less at later meals.

Apples

Skip the apple juice and the applesauce and opt instead for a crunchy apple. Whole fruit blunts appetite in a way that fruit juices and sauces don’t. One reason is that raw fruit has more fiber. Plus, chewing sends signals to your brain that you’ve eaten something substantial.